Math, asked by nadayilwoodworks, 7 months ago

express cosA in terms of cotA

Answers

Answered by pallavisrinivas2004

1

Answer:

Sec^2A = 1 + tan^2A

1/cos^2A = 1 + 1/cot^2A

= (cot^2A + 1)/ cot^2A

cos^2A = cot^2A / (cot^2A + 1)

cosA = cotA/ (cot^2A + 1)^1/2

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