Question

Prove that :
1 - cos A/ sinA = sinA / 1+ cosA
​

Answer 1

Step-by-step explanation:

=> (1 - cosA) /sinA

=> (1 - cosA) (1 + cosA) /(sinA*(1+cosA))

=> (1 - cos²A) /sinA*(1+cosA)

=> sin²A/sinA(1+cosA)

=> sinA / (1+cosA)

Answer 2

Answer:

SinA/1+cosA

Step-by-step explanation:

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

=1- cos²A/sinA(1+cosA)

=1-cos²A/ (1/cosA)(1+cosA)

=SinA/1+cosA

Hope it helps