User:Will.octagon.gibson/sandbox

This is a S A N D B O X!!!

AFTER

Relationship between all trigonometric ratios
The following identity gives a relationship between all the trigonometric ratios.
 * $$(\sin\theta + \csc\theta)^2 + (\cos\theta + \sec\theta)^2 -

(\tan\theta + \cot\theta)^2 = 5 $$

Similarly,


 * $$(\sin\theta + \csc\theta)^2 + (\cos\theta + \sec\theta)^2 =

\tan^2\theta + \cot^2\theta + 7 $$
 * $$(\sin\theta + \csc\theta)^2 + (\cos\theta + \sec\theta)^2 -

(\tan\theta - \cot\theta)^2 = 9 $$