Question

1 + sec theta /sec theta = sin2 theta /1-cos theta

Answer 1

Step-by-step explanation:

First, we consider

secθ

1+secθ

=

cosθ

1

1+

cosθ

1

=

cosθ

(cosθ+1)

(cosθ)

=1+cosθ

=(1+cosθ)×

(1−cosθ)

(1−cosθ)

=

1−cosθ

1−cos

2

θ

=

1−cosθ

sin

2

θ

.