Trigonometry Examples

Convert from Degrees to Radians cos(15)
Step 1
To convert degrees to radians, multiply by , since a full circle is or radians.

Step 2
The exact value of is .
Tap for more steps...
Split into two angles where the values of the six trigonometric functions are known.
radians
Separate negation.
radians
Apply the difference of angles identity .
radians
The exact value of is .
radians
The exact value of is .
radians
The exact value of is .
radians
The exact value of is .
radians
Simplify .
Tap for more steps...
Simplify each term.
Tap for more steps...
Multiply .
Tap for more steps...
Multiply by .
radians
Combine using the product rule for radicals.
radians
Multiply by .
radians
Multiply by .
radians
radians
Multiply .
Tap for more steps...
Multiply by .
radians
Multiply by .
radians
radians
radians
Combine the numerators over the common denominator.
radians
radians
radians
Step 3
Multiply .
Tap for more steps...
Multiply by .
radians
Multiply by .
radians
radians
Cookies & Privacy
This website uses cookies to ensure you get the best experience on our website.
More Information