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Solution - Derivative

- \frac{\cos (x) \cot (x)}{\sin^{2} (x)} - \frac{\csc (x)}{\sin^{2} (x)}

- \frac{\cos{\left(x \right)} \cot{\left(x \right)}}{\sin^{2}{\left(x \right)}} - \frac{\csc{\left(x \right)}}{\sin^{2}{\left(x \right)}}

See steps

Step-by-step explanation

1. Solve derivative

Applying the product rule of derivatives.

$\frac{d}{d x} [\cot (x) \times \csc (x)] = \frac{d}{d x} [\cot (x)] \times \csc (x) + \cot (x) \times \frac{d}{d x} [\csc (x)]$

8 additional steps

Computing the derivative of a cotangent function.

$\frac{d}{d x} [\cot (x)] \times \csc (x) + \cot (x) \times \frac{d}{d x} [\csc (x)] = - \frac{1}{\sin {(x)}^{2}} \times \csc (x) + \cot (x) \times \frac{d}{d x} [\csc (x)]$

The cotangent of an angle is equal to the cosine of the angle divided by the sine of the angle.

$\frac{d}{d x} [\cot (x)] = \frac{d}{d x} [\frac{\cos (x)}{\sin (x)}]$

Computing the derivative of a fraction.

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

Computing the derivative of a cosine function.

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

Computing the derivative of a sine function.

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

Multiplying the same numbers together.

$\frac{- \sin (x) \times \sin (x) - \cos (x) \times \cos (x)}{\sin {(x)}^{2}} = \frac{- \sin {(x)}^{2} - \cos (x) \times \cos (x)}{\sin {(x)}^{2}}$

Multiplying the same numbers together.

$\frac{- \sin {(x)}^{2} - \cos (x) \times \cos (x)}{\sin {(x)}^{2}} = \frac{- \sin {(x)}^{2} - \cos {(x)}^{2}}{\sin {(x)}^{2}}$

Grouping negative terms together.

$\frac{- \sin {(x)}^{2} - \cos {(x)}^{2}}{\sin {(x)}^{2}} = \frac{- (\sin {(x)}^{2} + \cos {(x)}^{2})}{\sin {(x)}^{2}}$

The square of the sine of an angle plus the square of the cosine of the same angle is always equal to one.

$\frac{- (\sin {(x)}^{2} + \cos {(x)}^{2})}{\sin {(x)}^{2}} = \frac{- 1}{\sin {(x)}^{2}}$

Placing the minus sign in front of a fraction.

$\frac{- 1}{\sin {(x)}^{2}} = - \frac{1}{\sin {(x)}^{2}}$

2 additional steps

Computing the derivative of a cosecant function.

$- \frac{1}{\sin {(x)}^{2}} \times \csc (x) + \cot (x) \times \frac{d}{d x} [\csc (x)] = - \frac{1}{\sin {(x)}^{2}} \times \csc (x) + \cot (x) \times (- \frac{1}{\sin {(x)}^{2}} \times \cos (x))$

The cosecant of an angle is equal to one divided by the sine of the angle.

$\frac{d}{d x} [\csc (x)] = \frac{d}{d x} [\frac{1}{\sin (x)}]$

Computing the derivative of a reciprocal.

$\frac{d}{d x} [\frac{1}{\sin (x)}] = - \frac{1}{\sin {(x)}^{2}} \times \frac{d}{d x} [\sin (x)]$

Computing the derivative of a sine function.

$- \frac{1}{\sin {(x)}^{2}} \times \frac{d}{d x} [\sin (x)] = - \frac{1}{\sin {(x)}^{2}} \times \cos (x)$

Simplifying the arithmetic expressions.

$- \frac{1}{\sin^{2} (x)} \times \csc (x) + \cot (x) \times (- \frac{1}{\sin^{2} (x)} \times \cos (x)) = - \frac{\csc (x)}{\sin^{2} (x)} + \cot (x) \times (- \frac{1}{\sin^{2} (x)} \times \cos (x))$

Simplifying the arithmetic expressions.

$- \frac{\csc (x)}{\sin^{2} (x)} + \cot (x) \times (- \frac{1}{\sin^{2} (x)} \times \cos (x)) = - \frac{\csc (x)}{\sin^{2} (x)} + \cot (x) \times (- \frac{\cos (x)}{\sin^{2} (x)})$

Simplifying the arithmetic expressions.

$- \frac{\csc (x)}{\sin^{2} (x)} + \cot (x) \times (- \frac{\cos (x)}{\sin^{2} (x)}) = - \frac{\csc (x)}{\sin^{2} (x)} - \frac{\cos (x) \cot (x)}{\sin^{2} (x)}$

Simplifying the arithmetic expressions.

$- \frac{\csc (x)}{\sin^{2} (x)} - \frac{\cos (x) \cot (x)}{\sin^{2} (x)} = - \frac{\cos (x) \cot (x)}{\sin^{2} (x)} - \frac{\csc (x)}{\sin^{2} (x)}$

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Why learn this

Ever wondered how to predict the future? Derivatives are your crystal ball!

Picture this: You're a surfer trying to catch the biggest wave. How do you know when it's coming? Derivatives can tell you when it's at its highest point!

Rocket Science: Planning to launch a rocket to Mars? Derivatives tell us the optimal fuel burn rate to minimize fuel consumption and maximize distance!

Stock Market: Trading in the stock market? Derivatives can indicate the rate at which stock prices are changing, helping predict the best time to buy or sell.

Animation: Love animated movies? Artists use derivatives to smoothly change the motion and expressions of characters, making them feel more lifelike.

Engineering: Designing a bridge or a skyscraper? Derivatives help determine the rates of stress and strain changes in materials, ensuring the safety of your structures.

In short, derivatives are like a secret code to understanding change and making predictions in real life. So let's crack this code together and become masters of our futures!

Terms and topics

Derivative

Solution - Derivative

Step-by-step explanation

1. Solve derivative

Why learn this

Terms and topics

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