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sine

opposite/hypotenuse

cosine

adjacent/hypotenuse

tangent

opposite/adjacent

pythagorean theorem

a²+b²=c²

Inverse Trig Function

Gives an angle based on a ratio of sides

Trig Function

Gives a ratio of sides based on an angle

SOHCAHTOA

Acronym for remembering the trig functions

To find the exact value of a trig function, we need

Special Right Triangles