If $y=a \sin m x+b \cos m x$, then $\frac{d^2 y}{d x^2}$ is equal to

JEE MATHEMATICS MCQ: DIFFERENTIATION

1 Easy

1 of 1

Application +4 | -1

y=a \sin m x+b \cos m x

, then

\frac{d^2 y}{d x^2}

is equal to

View answer and explanation

Correct option: B

-m^2 y

Option B (

-m^2 y

) is correct because differentiating the given equation twice leads to this result.

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v\frac{{\partial z}}{{\partial x}} + \frac{{\partial z}}{{\partial y}}