(cos^2A-1) (cot^2A +1)=-1
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Step-by-step explanation:
(Cos^2 A-1)(cot^2 A+1)=-1
(-sin^2A)(cosec^2 A) =-1
(-sin^2A)(1/sin^2A)=-1
-1=-1..
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Answered by
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Answer:
Step-by-step explanation:
(Cos^2 A-1)(cot^2 A+1)=-1
(-sin^2A)(cosec^2 A) =-1
(-sin^2A)(1/sin^2A)=-1
-1=-1..
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