Question

cos²A + 1 = 1
(1+ cot2A)​

Answer 1

Answer:

Step-by-step explanation:

LHS, cos²A + 1 =$Sin^{2} A$

RHS, $\frac{1}{(1+Cot^{2}A)}$=$\frac{1}{Cosec^{2}A }$=$Sin^{2}A$

So, LHS=RHS, Hence proved.

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