Question: Pls prove this statement j) + = -2 cot A 1-sec A 1+ sec A 1 1 j) -2 cot2 A 1- secA 1 +

1 1 j) -2 cot2 A 1- secA 1 + secA

Pls prove this statement

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j) + = -2 cot A 1-sec A 1+ sec A

1 1 j) -2 cot2 A 1- secA 1 + secA

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