Trigonometry Examples

2 cos (45)

$2 \cos (45)$

Step 1

The exact value of

cos (45)

$\cos (45)$ is

\frac{\sqrt{2}}{2}

$\frac{\sqrt{2}}{2}$ .

2 \frac{\sqrt{2}}{2}

$2 \frac{\sqrt{2}}{2}$

Step 2

Cancel the common factor of

2

$2$ .

Tap for more steps...

Step 2.1

Cancel the common factor.

$2 \frac{\sqrt{2}}{2}$

Step 2.2

Rewrite the expression.

$\sqrt{2}$

$\sqrt{2}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\sqrt{2}$

Decimal Form:

$1.41421356 \dots$

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