Question

guys please help class 10 maths .​

Answer 1

(1-cosA)/(1+cosA)

divide and multiply with 1-cosA

=(1-cosA)(1-cosA)/(1+cosA)(1-cosA)

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

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

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

=(cosecA-cotA)^2

=(cotA-cosecA)^2

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Answer 2

Answer:

your answer attached in the photo