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Let f(x) = asin|x| + be^|x| is different...

Let `f(x) = asin|x| + be^|x|` is differentiable when

A

`3a + b =0`

B

`3a - b =0`

C

`a + b =0`

D

`a -b =0`

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The correct Answer is:
C
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MTG-WBJEE-DERIVATIVES -WB JEE PREVIOUS YEARS QUESTIONS
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