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यदि f ( x ) = {{:((sqrt2 cos x - 1 ) ...

यदि ` f ( x ) = {{:((sqrt2 cos x - 1 ) /(cot x - 1 )"," x ne (pi)/(4)), ( 2alpha", "x = pi//4):}, x = (pi)/(4) ` पर सतत है , तो `alpha ` का मान होगा -

A

2

B

` (1) /(4)`

C

` - (1)/(2)`

D

`sqrt2`

लिखित उत्तर

Verified by Experts

The correct Answer is:
B
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