Math

Trigonometry Calculator

Find sine, cosine and tangent of an angle.

Calculated Output

sin 0.5

cos 0.866

tan 0.5774

Formula: convert degrees to radians, then sin/cos/tan

Step-by-Step Breakdown

1. Values used:

2. Angle = 30 degrees

4. sin = 0.5

5. cos = 0.866

6. tan = 0.5774

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The math behind it

Angles are converted to radians (× π/180) before applying sin, cos and tan.

30° → sin 0.5, cos 0.866, tan 0.577.

Why does tan blow up at 90°?

cos(90°) = 0, and tan = sin ÷ cos, so it's undefined there.