Higher order derivativesMediumQuestion 360007
Question
If y = sin x, then d²y/dx² is:
- A−sin xCorrect
- Bcos x
- C−cos x
- Dsin x
Correct answer
−sin x
Explanation
y' = cos x. y'' = d/dx(cos x) = −sin x.
Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.
y' = cos x. y'' = d/dx(cos x) = −sin x.