Question

Prove that
1 - cos2A / sin2A = tanA​

Answer 1

Answer:

1-cos2A/sin2A

=(1-cos^2 A+sin^2 A)/(2sinAcos)

=(sin^2 A+sin^2A)/2sinAcosA

=2sin^2 A/2sinAcos^2 A

=sinA/cosA

=tanA

...proved

Answer 2

Answer:

so this is the answer

pls write down