Enter a problem...

Trigonometry Examples

Popular Problems

Simplify sec(28)^2-tan(28)^2

$\sec^{2} (28) - \tan^{2} (28)$

Step 1

Apply pythagorean identity.

$1$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$

Please ensure that your password is at least 8 characters and contains each of the following:

a number
a letter
a special character: @$#!%*?&