Question

prove 1+ cos A / sin^2A = 1 / 1- cos A​

Answer 1

Answer:

please thanks my answer

                 

                 

Answer 2

Step-by-step explanation:

1+cosAsin2A=11−cosA

Multiplying by (sin2A)(1−cosA)gives:

(1+cosA)(1−cosA)=sin2A

1−cos2A=sin2A

Then, this is equivalent to:

sin2A+cos2A=1