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The value of lim(x to (pi)/(4)) ("sin" ...

The value of `lim_(x to (pi)/(4)) ("sin" x - cos x)/((x - (pi)/(4)))` equals

A

`sqrt(2)`

B

`(1)/(sqrt(2))`

C

2

D

`(1)/(2)`

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The correct Answer is:
A
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AAKASH INSTITUTE-LIMITS AND DERIVATIVES -Section - B
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