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y= sin x- cos x and f(x)= (d^(17)y)/(dx^...

`y= sin x- cos x and f(x)= (d^(17)y)/(dx^(17)) " then " f((pi)/(4))`= …….. [a] √2 [b] 1/√2 [c] (√2)^17 [d] 0

A

`sqrt2`

B

`(1)/(sqrt2)`

C

`(sqrt2)^(17)`

D

0

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The correct Answer is:
A
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