COSINE CALCULATOR


Cosine Table

x(deg) x(rad) cos x
180° π -1
150° 5π/6 -√3/2
135° 3π/4 -√2/2
120° 2π/3 -1/2
90° π/2 0
60° π/3 1/2
45° π/4 √2/2
30° π/6 √3/2
0° 0 1

Cosine Calculation

The cosine is defined as the ratio of the length of the base to that of the length of the hypotenuse in a right-angled triangle. It is denoted as cosθ, where θ is the angle between the two sides.