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Question

Question: If y = cos2x<sup>0</sup>, then\(\frac{dy}{dx}\)=...

If y = cos2x0, thendydx\frac{dy}{dx}=

A

π180\frac{- \pi}{180}sin 2x0

B

π360\frac{\pi}{360{^\circ}}sin 2x0

C

π180\frac{\pi}{180{^\circ}}sin 2x0

D

π360\frac{- \pi}{360{^\circ}} sin 2x0

Answer

π180\frac{- \pi}{180}sin 2x0

Explanation

Solution

y = cos2πx180\frac{\pi x}{180}= –π180\frac{\pi}{180}sin 2πx180\frac{2\pi x}{180}= –π180\frac{\pi}{180}sin 2x0