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If y=sinx+cosx" then "(d^(2)y)/(dx^(2)) ...

If `y=sinx+cosx" then "(d^(2)y)/(dx^(2))` is :-

A

`sinx-cosx`

B

`cosx-sinx`

C

`-(sinx+cosx)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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