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The differential equation for which y=a ...

The differential equation for which `y=a cos x+b sin x ` is a solution, is

A

`(d^2y)/(dx^2) +y=0`

B

`(d^2y)/(dx^2) -y=0`

C

`(d^2y)/(dx^2)+(a+b) y=0`

D

`(d^2y)/(dx^2)+(a-b) y=0`

Text Solution

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The correct Answer is:
A
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