values of sine cos tan in whole numbers

Angle Sine Cosine Tangent
0 0 1 0
30 1/2 √3/2 √3/3
45 √2/2 √2/2 1
60 √3/2 1/2 √3
90 1 0 Undefined
120 √3/2 -1/2 -√3
135 √2/2 -√2/2 -1
150 1/2 -√3/2 -√3/3
180 0 -1 0
Note that sine and tangent are undefined at 90 degrees (π/2 radians) and its multiples, and that cosine is undefined at 180 degrees (π radians) and its multiples.


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