Question

find the value of
-cot(-x)
please answer​

Answer 1

Answer:

cot(x)

Step-by-step explanation:

-cot(-x) can be written as $\frac{-cos(-x)}{sin(-x)}$

Now it is a well known fact that cosx is even function and sinx is odd function....If you don't you can take a look at their graphs...

$-\cot(-x) = \frac{-\cos (-x)}{\sin (-x)} = \frac{-cosx}{-sinx} = cot(x)$