If `Tan(picostheta)=cot(pisintheta)` then the value of (s) of `cos(the – InterviewSolution

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1.	If `Tan(picostheta)=cot(pisintheta)` then the value of (s) of `cos(theta-pi/4)` is(are)A. `(1)/(2)`B. `- (1)/(sqrt2)`C. `-(1)/(2sqrt2)`D. `(1)/(2sqrt2)`
Answer» Correct Answer - D

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