Trigonometry Examples

Find the Exact Value cos(30 degrees)
Find the value using the definition of cosine.
Substitute the values into the definition.
Simplify the result.
Tap for more steps...
Multiply the numerator by the reciprocal of the denominator.
Multiply by .
The result can be shown in both exact and decimal forms.
Exact Form:
Decimal Form:
Mathway requires javascript and a modern browser.