If tan theta = 1 and sin phi = (1)/( sqr...

If `tan theta = 1` and `sin phi = (1)/( sqrt(2))` , then the value of ` cos (theta + phi)` is

A

`-1`

B

`0`

C

`1`

D

`(sqrt(3))/(2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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