Review question

# Can we prove this trig identity to solve this equation? Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

Ref: R5269

## Question

1. Prove that $\frac{\sin A}{1 + \cos A} + \frac{1 + \cos A}{\sin A} = \frac{2}{\sin A}$ for all values of $A$.

2. Find the values of $x$ between $0^\circ$ and $360^\circ$ if $\frac{\sin x}{1 + \cos x} + \frac{1 + \cos x}{\sin x} = 1 + 3 \sin x.$