# Trigonometry Examples

,
To find the value of , use the fact that so then substitute in the known values.
Simplify the result.
Cancel the common factor of .
Factor out the greatest common factor .
Cancel the common factor.
Rewrite the expression.
Multiply and .
To find the value of , use the fact that then substitute in the known values.
Simplify the result.
Multiply the numerator by the reciprocal of the denominator.
Multiply by .
To find the value of , use the fact that then substitute in the known values.
Simplify the result.
Multiply the numerator by the reciprocal of the denominator.
Multiply by .
To find the value of , use the fact that then substitute in the known values.
Simplify the result.
Multiply the numerator by the reciprocal of the denominator.
Multiply by .
The trig functions found are as follows: