If `cos^(2)theta-sin^(2)theta=tan^(2)alpha,` `"then" : sqrt2 * cos the – InterviewSolution

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1.	If `cos^(2)theta-sin^(2)theta=tan^(2)alpha,` `"then" : sqrt2 * cos theta * cos alpha=....`A) `sin theta * sin alpha`B)1 C)`tan^(2)theta` D)none of theseA. `sin theta * sin alpha`B. 1C. `tan^(2)theta`D. none of these
Answer» Correct Answer - B

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