Math, asked by strikeshadow083, 8 months ago

1 + cos A / 1 - cos A = ( cosec A +cot A)2

Answers

Answered by BrainlyEmpire

2

Answer:

hello mate..

Step-by-step explanation:

-cosA)/(1+cosA)

=(1-cosA)/(1+cosA) ×(1-cosA)/(1-cosA)

=(1-cosA)^2 /(1-cos^2A)

=(1-cosA)^2 / (sin^2A)

=(1/sinA - cosA/sinA )^2

=cosecA - cotA)^2

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