Pythagorean Identity calculator

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Pythagorean Identities formula

sin 2X + cos 2X = 1

1 + tan 2X = sec 2X

1 + cot 2X = csc 2X

sin2θ + cos2θ = 1 is called a Pythagorean Identity.

From the identity we can creat two additional Pythagorean Identities: tan2θ + 1 = sec2θ;
1 + cot2θ = cosec2θ.

For example, when θ = 19º, Then Sin2 + Cos2 = 0.32556815445715682 + 0.94551857559931672, Sin2 + Cos2 = 0.10599 + 0.89401, 1 = 1. Since 1 = 1, we have proven this Trigonometry Identity using the angle 19º

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