Řešení - Trigonometry

- \cot (23 °)

-\cot(23\degree)

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Reflecting the number with respect to 360 degrees.

$\cot (157 °) = \cot (180 - 23 °)$

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

$\cot (180 - 23 °) = \frac{\cos (180 - 23 °)}{\sin (180 - 23 °)}$

Reflecting the cosine function with respect to 180 degrees.

$\frac{\cos (180 - 23 °)}{\sin (180 - 23 °)} = \frac{- \cos (23 °)}{\sin (180 - 23 °)}$

Reflecting the sine function with respect to 180 degrees.

$\frac{- \cos (23 °)}{\sin (180 - 23 °)} = \frac{- \cos (23 °)}{\sin (23 °)}$

Placing the minus sign in front of a fraction.

$\frac{- \cos (23 °)}{\sin (23 °)} = - \frac{\cos (23 °)}{\sin (23 °)}$

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

$- \frac{\cos (23 °)}{\sin (23 °)} = - \cot (23 °)$

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Goniometrie propojuje úhly, délky a periodické děje v matematice i fyzice.