Trigonometry Examples

\sin (120)

$\sin (120)$

Step 1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

\sin (60)

$\sin (60)$

Step 2

The exact value of

\sin (60)

$\sin (60)$ is

\frac{\sqrt{3}}{2}

$\frac{\sqrt{3}}{2}$ .

\frac{\sqrt{3}}{2}

$\frac{\sqrt{3}}{2}$

Step 3

The result can be shown in multiple forms.

Exact Form:

\frac{\sqrt{3}}{2}

$\frac{\sqrt{3}}{2}$

Decimal Form:

0.86602540 \dots

$0.86602540 \dots$

\sin (120)

$\sin (120)$

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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

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5

5

6

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^

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×

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



π

π

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1

1

2

2

3

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

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