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Precalculus Examples

Popular Problems

Simplify sec(theta)^2-tan(theta)^2+1

$\sec^{2} (θ) - \tan^{2} (θ) + 1$

Step 1

Apply pythagorean identity.

$1 + 1$

Step 2

Add $1$ and $1$ .

$2$

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

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