Math, asked by brainlyuser9765, 9 months ago

cot A/2 = sin A/ 1- cosA
pls prove soon..

Answers

Answered by sharmichaudhary

1

Step-by-step explanation:

rhs

sinA/(1-cosA)

so sinA = 2 sinA/2 cosA/2

1- cosA= 2sin²A/2

so on simply

cot A/2

LHS= RHS

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