Trigonometry Examples

sin (\frac{11 π}{6})

$\sin (\frac{11 π}{6})$

Step 1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the fourth quadrant.

- sin (\frac{π}{6})

$- \sin (\frac{π}{6})$

Step 2

The exact value of

sin (\frac{π}{6})

$\sin (\frac{π}{6})$ 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

$- 0.5$

$\sin \frac{11 π}{6}$

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