COL15. निम्नलिखित सर्वसमिकाओ� – InterviewSolution

1.	COL15. निम्नलिखित सर्वसमिकाओं को सिद्ध करें:(i) (1-cos 9) (1 + cos e) (1+ cot-0)=1
Answer» so(1-cos^2 theta)(1-cot^2 theta)sin^2 theta* cosec^2 theta= 1

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