Q 1144878753.     Let `P = {theta: sin(theta)-cos(theta)=sqrt(2)cos(theta)}` and `Q = {theta: sin(theta)+cos(theta)=sqrt(2)sin(theta)}` be two sets.Then

JEE 2011
A

`P `sub `Q` and `Q-P=O`

B

`P!subQ`

C

`P=Q`

D

`Q !subP`

HINT

On rearranging,
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