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prove that d(cotx)/dx = -csc^2 x

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prove that d(cotx)/dx = -csc^2 x
asked Feb 21, 2015 in CALCULUS by anonymous
reshown Feb 21, 2015 by steve

1 Answer

0 votes

Step 1:

The trigonometric function is image.

Apply derivative with respect to image.

image

Use quotient rule : image.

                     image

From Pythagorean identity : image.

                     image

image.

Solution :

image.

answered Feb 21, 2015 by joseph Apprentice

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