# Trigonometry Examples

, , ,

Solve for in the first equation.

Replace all occurrences of with the solution found by solving the last equation for . In this case, the value substituted is .

Solve for in the second equation.

Replace all occurrences of with the solution found by solving the last equation for . In this case, the value substituted is .

Solve for in the third equation.

This is the solution to the system of equations.

Replace the variable with in the expression.

Replace the variable with in the expression.

Replace the variable with in the expression.

Remove parentheses.

Multiply by .

Multiply by .

Add and .

Add and .