If sintheta(1)-sintheta(2)=aandcostheta(...

If `sintheta_(1)-sintheta_(2)=aandcostheta_(1)+costheta_(2)=b`, then

A

`a^(2)+b^(2)ge4`

B

`a^(2)+b^(2)le4`

C

`a^(2)+b^(2)ge3`

D

`a^(2)+b^(2)le2`

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The correct Answer is:

B

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