Question

Trespass unit questions​

Answer 1

$\boxed{\begin{minipage}{7 cm}Fundamental Trigonometric Identities \\ \\ \sin^2\theta + \cos^2\theta=1 \\ \\ 1+\tan^2\theta = \sec^2\theta \\ \\1+\cot^2\theta =\text{cosec}^2\,\theta \end{minipage}}$