If y = x Sin x, find \(\frac{dy}{dx}\) when x = \(\frac{\pi}{2}\)
MATHEMATICS
JAMB 2017
If y = x Sin x, find \(\frac{dy}{dx}\) when x = \(\frac{\pi}{2}\)
- A. \(\frac{- \pi}{2}\)
- B. -1
- C. 1
- D. \(\frac{ \pi}{2}\)
Correct Answer: C. 1
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