Question Detail
Question
If y = sinx, what is d³y/dx³?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Given y = sin x.First derivative: dy/dx = cos xSecond derivative: d²y/dx² = -sin xThird derivative: d³y/dx³ = -cos xThis matches option C.
Hint
Differentiate the function y = sin x three times in succession.