If y = x sin x, Find \(\frac{d^2 y}{d^2 x}\)
MATHEMATICS
JAMB 1992
If y = x sin x, Find \(\frac{d^2 y}{d^2 x}\)
- A. 2 cosx - x sinx
- B. sinx + x cosx
- C. sinx - x cosx
- D. x sinx - 2 cosx
Correct Answer: A. 2 cosx - x sinx
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