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For any two real numbers a and b , we...

For any two real numbers a and b , we define aRb if and only if ` sin ^(2) a +cos ^(2) b=1 ` , the relation R is -

A

R is reflexive but neither symmetric nor transitive

B

R is both reflexive and symmetric but not transitive

C

R is an equivalence relation

D

R is transitive and symmetric but not reflexive

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The correct Answer is:
C
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