Trigonometry Examples

cos (420)

$\cos (420)$

Step 1

Remove full rotations of

360

$360$ ° until the angle is between

0

$0$ ° and

360

$360$ °.

cos (60)

$\cos (60)$

Step 2

The exact value of

cos (60)

$\cos (60)$ is

\frac{1}{2}

$\frac{1}{2}$ .

\frac{1}{2}

$\frac{1}{2}$

Step 3

The result can be shown in multiple forms.

Exact Form:

\frac{1}{2}

$\frac{1}{2}$

Decimal Form:

0.5

$0.5$

$\cos (420)$

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|

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√

√

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

≥

≥



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°

°

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7

7

8

8

9

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θ

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4

4

5

5

6

6

/

/

^

^

×

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>

>





π

π

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1

1

2

2

3

3

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+

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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