If , then value of Also Square both side ⇒ ⇒ ⇒ So
| If
, then value of


A.
B.
C.
D.
Right Answer is: B
SOLUTION
Also
Square both side
⇒
⇒
⇒
So
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If , then value of
Also
Square both side
⇒
⇒
⇒
So