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If costheta-sintheta=sqrt2sintheta then ...

If `costheta-sintheta=sqrt2sintheta` then `costheta+sintheta` is equal to

A

`P sub Q and Q-P = phi`

B

`Qcancel(sub)P`

C

`P cancel(sub)Q`

D

`P=Q`

Text Solution

Verified by Experts

The correct Answer is:
D
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