Prove that: 1 + cosec θ/cosec θ = ² θ/1 - θ

CBSE Class 10 Maths PYQ · Trigonometry · Prove Given Result · 3 Marks · March 2026 · Basic

Solve it yourself first — then press or tap Show Solution. Use for previous / next question.

2743 Marks · March 2026 · Basic
Prove that: $\frac{1 + cosec \theta}{cosec \theta} = \frac{\cos^2 \theta}{1 - \sin \theta}$
Show SolutionHide Solution
$LHS = \frac{1 + cosec \theta}{cosec \theta} = \frac{1}{cosec \theta} + \frac{cosec \theta}{cosec \theta} = \sin \theta + 1$ (1 Mark)
$RHS = \frac{\cos^2 \theta}{1 - \sin \theta} = \frac{1 - \sin^2 \theta}{1 - \sin \theta}$ (1 Mark)
$= \frac{(1 - \sin \theta)(1 + \sin \theta)}{1 - \sin \theta} = 1 + \sin \theta$ (1 Mark)
$LHS = RHS$
← Previous questionNext question →