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解答 - 导数

\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) - \frac{6 a c r \cos (\frac{3}{x^{2}})}{x^{3}}

\frac{d}{dx}[a]\times rc\times \sin{\left(\frac{3}{x^{2}} \right)}+a\times \frac{d}{dx}[r]\times c\times \sin{\left(\frac{3}{x^{2}} \right)}+ar\times \frac{d}{dx}[c]\times \sin{\left(\frac{3}{x^{2}} \right)}- \frac{6 a c r \cos{\left(\frac{3}{x^{2}} \right)}}{x^{3}}

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逐步解答

1. 求导数

19 个额外步骤

扩展乘法的导数。

$\frac{d}{d x} [a r c \times \sin (\frac{3}{x^{2}})] = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]$

扩展乘法的导数。

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [a r c \times \sin (\frac{3}{x^{2}})] = \frac{d}{d x} [a \times (r c \times \sin (\frac{3}{x^{2}}))]$

应用导数的乘法规则。

$\frac{d}{d x} [a \times (r c \times \sin (\frac{3}{x^{2}}))] = \frac{d}{d x} [a] \times (r c \times \sin (\frac{3}{x^{2}})) + a \times \frac{d}{d x} [r c \times \sin (\frac{3}{x^{2}})]$

扩展乘法的导数。

$\frac{d}{d x} [a] \times (r c \times \sin (\frac{3}{x^{2}})) + a \times \frac{d}{d x} [r c \times \sin (\frac{3}{x^{2}})] = \frac{d}{d x} [a] \times (r c \times \sin (\frac{3}{x^{2}})) + a (\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [r c \times \sin (\frac{3}{x^{2}})] = \frac{d}{d x} [r \times (c \times \sin (\frac{3}{x^{2}}))]$

应用导数的乘法规则。

$\frac{d}{d x} [r \times (c \times \sin (\frac{3}{x^{2}}))] = \frac{d}{d x} [r] \times (c \times \sin (\frac{3}{x^{2}})) + r \times \frac{d}{d x} [c \times \sin (\frac{3}{x^{2}})]$

扩展乘法的导数。

应用导数的乘法规则。

$\frac{d}{d x} [c \times \sin (\frac{3}{x^{2}})] = \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [r] \times (c \times \sin (\frac{3}{x^{2}})) + r (\frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]) = \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r (\frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])$

可以通过分别乘以每个数，然后再加或减结果，来乘以两个数的和或差。

$\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r (\frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]) = \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + (r \times (\frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}})) + r \times (c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]))$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + (r \times (\frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}})) + r \times (c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])) = \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r \times (c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]))$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r \times (c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])) = \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])$

加法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]) = \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [a] \times (r c \times \sin (\frac{3}{x^{2}})) + a (\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a (\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])$

可以通过分别乘以每个数，然后再加或减结果，来乘以两个数的和或差。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a (\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times (\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}})) + a \times (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}})) + a \times (r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]))$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times (\frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}})) + a \times (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}})) + a \times (r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a \times (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}})) + a \times (r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]))$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a \times (r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}})) + a \times (r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a \times (r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]))$

乘法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a \times (r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})])$

加法可以以不同的方式分组，但结果仍然相同。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + (a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})]$

2 个额外步骤

使用链式法则计算正弦函数的导数。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times \frac{d}{d x} [\sin (\frac{3}{x^{2}})] = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{d}{d x} [\frac{3}{x^{2}}])$

为链式法则分解函数。

$\frac{d}{d x} [\sin (\frac{3}{x^{2}})] = \frac{d}{d x} [\sin (x)] \times \frac{d}{d x} [\frac{3}{x^{2}}]$

计算正弦函数的导数。

$\frac{d}{d x} [\sin (x)] \times \frac{d}{d x} [\frac{3}{x^{2}}] = \cos (x) \times \frac{d}{d x} [\frac{3}{x^{2}}]$

将变量重新替换回函数。

$\cos (x) \times \frac{d}{d x} [\frac{3}{x^{2}}] = \cos (\frac{3}{x^{2}}) \times \frac{d}{d x} [\frac{3}{x^{2}}]$

计算分数的导数。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{d}{d x} [\frac{3}{x^{2}}]) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{\frac{d}{d x} [3] \times x^{2} - 3 \times \frac{d}{d x} [x^{2}]}{{(x^{2})}^{2}})$

常数的导数总是零。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{\frac{d}{d x} [3] \times x^{2} - 3 \times \frac{d}{d x} [x^{2}]}{{(x^{2})}^{2}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times \frac{d}{d x} [x^{2}]}{{(x^{2})}^{2}})$

计算x的n次幂的导数。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times \frac{d}{d x} [x^{2}]}{{(x^{2})}^{2}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times (2 x^{2 - 1})}{{(x^{2})}^{2}})$

从一个数字中减去一。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times (2 x^{2 - 1})}{{(x^{2})}^{2}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times (2 x^{1})}{{(x^{2})}^{2}})$

任何数的一次方都等于该数本身。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times (2 x^{1})}{{(x^{2})}^{2}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times (2 x)}{{(x^{2})}^{2}})$

一个数乘以零总是等于零。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 x^{2} - 3 \times (2 x)}{{(x^{2})}^{2}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 - 3 \times (2 x)}{{(x^{2})}^{2}})$

简化算术表达式。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 - 3 \times (2 x)}{{(x^{2})}^{2}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 - 3 \times (2 x)}{x^{4}})$

一个数加零，其结果不变。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{0 - 3 \times (2 x)}{x^{4}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{- 3 \times (2 x)}{x^{4}})$

简化算术表达式。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{- 3 \times (2 x)}{x^{4}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{- 6 x}{x^{4}})$

简化算术表达式。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times \frac{- 6 x}{x^{4}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times (- \frac{6}{x^{3}}))$

简化算术表达式。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (\cos (\frac{3}{x^{2}}) \times (- \frac{6}{x^{3}})) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (- \frac{6 \cos (\frac{3}{x^{2}})}{x^{3}})$

简化算术表达式。

$\frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) + a r c \times (- \frac{6 \cos (\frac{3}{x^{2}})}{x^{3}}) = \frac{d}{d x} [a] \times r c \times \sin (\frac{3}{x^{2}}) + a \times \frac{d}{d x} [r] \times c \times \sin (\frac{3}{x^{2}}) + a r \times \frac{d}{d x} [c] \times \sin (\frac{3}{x^{2}}) - \frac{6 a c r \cos (\frac{3}{x^{2}})}{x^{3}}$

我们做得怎么样？

给我们反馈

为什么学习这个

是否想过如何预测未来？导数就是你的水晶球！

想象一下：你是一个想要捕捉最大浪的冲浪者。你如何知道它什么时候到来？导数可以告诉你什么时候它在最高点！

火箭科学：打算发射火箭去火星？导数告诉我们最佳的燃烧速率，以便最大限度地减少燃料消耗和增加距离！

股市：在股市交易吗？导数可以显示股票价格变化的速度，有助于预测最佳购买或销售时机。

动画：喜欢动画电影吗？艺术家们使用导数顺畅地改变角色的动作和表情，使他们感觉更像真实的生活。

工程学：正在设计一座桥或一座摩天大楼？导数可以帮助确定材料的应力和应变变化率，确保你的结构的安全。

简言之，导数就像是理解变化并在现实生活中做出预测的秘密代码。所以，我们一起来解开这个代码，成为我们未来的主人吧!

术语和主题

导数

解答 - 导数

逐步解答

1. 求导数

为什么学习这个

术语和主题

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