Trigonometry Examples

$2 \cos (60) - \tan (\frac{π}{4})$

Step 1

Simplify each term.

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Step 1.1

The exact value of $\cos (60)$ is $\frac{1}{2}$ .

$2 (\frac{1}{2}) - \tan (\frac{π}{4})$

Step 1.2

Cancel the common factor of $2$ .

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Step 1.2.1

Cancel the common factor.

$2 (\frac{1}{2}) - \tan (\frac{π}{4})$

Step 1.2.2

Rewrite the expression.

$1 - \tan (\frac{π}{4})$

$1 - \tan (\frac{π}{4})$

Step 1.3

The exact value of $\tan (\frac{π}{4})$ is $1$ .

$1 - 1 \cdot 1$

Step 1.4

Multiply $- 1$ by $1$ .

$1 - 1$

$1 - 1$

Step 2

Subtract $1$ from $1$ .

$0$

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