Question

Prove that
sin^2A /1+cosA=1-cosA​

Answer 1

Answer:

Sin^2/1+cosA=1 -cos A

sin^2=1-cosA(1+cosA)

sin^2=1-cos^2A

(Identity: sin^2A+cos^2=1 )

From that 1-cos^2A=sin^2A

Hence proved

Hope it helps

Answer 2

Answer:

Step-by-step explanation:

We know sin^2 A+ cos ^2A=1

By this sin^2A=1-cos^2A

Sin^2A=(1+cosA)(1-cosA)

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