Trigonometry calculator
Calculate sin, cos, tan, and their inverses. Supports degrees and radians with exact values.
()
The six trig functions
sin = opp/hyp. cos = adj/hyp. tan = opp/adj = sin/cos.
csc = 1/sin. sec = 1/cos. cot = 1/tan = cos/sin.
Key angles
sin(30°) = ½. sin(45°) = √2/2. sin(60°) = √3/2. sin(90°) = 1.
Inverse functions
sin⁻¹(x) gives the angle whose sine is x. arcsin(0.5) = 30°.
Related calculators