A math trigo formulas

Sine 30 or pi/6

1/2

Sine 45 or pi/4

root 2/2 (s)

Sine 60 or pi/3

root 3/2

Cosine 30 or pi/6

root 3/2

Cosine 45 or pi/4

root 2/2 (c)

Cosine 60 or pi/3

1/2

tangent 30 or pi/6

root 3/3

tangent 45 or pi/4

1

tangent 60 or pi/3

root 3

Rsin(angle + - alpha)

Asine(angle) + - Bcosine(angle)

Rcos(angle - + alpha)

Acosine(angle) + - Bsine(angle)

R in R formula

Root (a^2 + b^2)

alpha in R formula

tangent inverse b/a