Question

1+cos ×1-costheta ×1+cot square theta is equal 1

Answer 1

Answer:

LHS=(1+costheta)(1-costheta)(1+cot^2theta)

=(1-cos^2theta)(1+cot^2theta)

=(sin^2theta)(cosec^2theta)

=(sin^2theta)(1/sin^2theta)

=1

=RHS