Pythagorean Trig Identities
Table of Contents
$$\sin^2(x) + \cos^2(x) = 1$$
$$\tan^2(x) + 1 = \sec^2(x)$$
$$\cot^2(x) + 1 = \csc^2(x)$$
The above are the Pythagorean trigonometric identities, true for all real x.
$$\sin^2(x) + \cos^2(x) = 1$$
$$\tan^2(x) + 1 = \sec^2(x)$$
$$\cot^2(x) + 1 = \csc^2(x)$$
The above are the Pythagorean trigonometric identities, true for all real x.