Question

(cosecA-cotA)²=(1-cosA)(1+cosA)

Answer 1

Heya friend ✋✋

Here's your answer ⏩⏩

Follow the attachment above ↗↗

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@creamiepie

Answer 2

Thank you for asking this question. Here is your answer:

LHS

( 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

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