Question 34
DifferentiationIf y = x sin x, find dy/dx when x = π/2.
- A.π/2
- B.1
- C.−1
- D.π/−2
Show the answer and explanation
Answer: B (1)
Explanation
dy/dx = sin x + x cos x. At x = π/2 this is 1 + (π/2)(0) = 1.
If y = x sin x, find dy/dx when x = π/2.
Answer: B (1)
dy/dx = sin x + x cos x. At x = π/2 this is 1 + (π/2)(0) = 1.