Trigonometry Examples

Start on the left side.
Convert to sines and cosines.
Tap for more steps...
Apply the reciprocal identity to .
Write in sines and cosines using the quotient identity.
Simplify .
Combine the numerators over the common denominator.
Apply pythagorean identity.
Reduce the expression by cancelling the common factors.
Because the two sides have been shown to be equivalent, the equation is an identity.
is an identity
Enter YOUR Problem

Enter the email address associated with your Mathway account below and we'll send you a link to reset your password.

Please enter an email address
Please enter a valid email address
The email address you entered was not found in our system
The email address you entered is associated with a Facebook user
We're sorry, we were unable to process your request at this time

Mathway Premium

Step-by-step work + explanations
  •    Step-by-step work
  •    Detailed explanations
  •    No advertisements
  •    Access anywhere
Access the steps on both the Mathway website and mobile apps
$--.--/month
$--.--/year (--%)

Mathway Premium

Visa and MasterCard security codes are located on the back of card and are typically a separate group of 3 digits to the right of the signature strip.

American Express security codes are 4 digits located on the front of the card and usually towards the right.
This option is required to subscribe.
Go Back

Step-by-step upgrade complete!

Mathway requires javascript and a modern browser.
  [ x 2     1 2     π     x d x   ]