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If y=2cosx+3sinx-cos2x," then "(d^(2)y)/...

If `y=2cosx+3sinx-cos2x," then "(d^(2)y)/(dx^(2))+y=`

A

`cos2x`

B

`2cos2x`

C

`3cos2x`

D

`2cos3x`

Text Solution

Verified by Experts

The correct Answer is:
C
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