The value of 9 cot²0-9 cosec²0 is .........(A) 9 (B) 9 (C) 1 (D) - 1 – InterviewSolution

1.	The value of 9 cot²0-9 cosec²0 is .........(A) 9 (B) 9 (C) 1 (D) - 1
Answer» 9Step-by-step EXPLANATION:we KNOW that cot^2 theta-cosec^2 theta=1therefore 9cot^2 theta-9cosec^2 theta9(cot^2 theta-cot^2 theta=9(1)=9

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