Prove it 1+cos A by 1- COS A is equal to (cosecA + cota)²
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Step-by-step explanation:
Taking RHS
( cosecA + cotA )²
= ( 1/ sinA + cosA/sinA )²
= ( 1 + cosA/ sinA )²
= ( 1 - cosA )²/ sin²A
= ( 1 + cosA )²/ 1 + cos²A
= ( 1 + cosA ) ( 1 + cosA )/ ( 1 - cosA ) ( 1 + cosA )
= 1 + cosA / 1 - cosA
LHS
∴LHS =RHS
Hence proof
Hope you understand.
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