# Finite Math Examples

,

Replace the variable with in the expression.

Rewrite in terms of sines and cosines.

Write as a fraction with denominator .

Factor out the greatest common factor .

Cancel the common factor.

Rewrite the expression.

Multiply and .

Divide by .

is a full rotation so replace with .

The exact value of is .

The expression contains a division by . The expression is undefined.

Undefined