Trigonometry Examples

$2 (- \frac{15}{17}) (- \frac{8}{17})$

Step 1

Multiply $2 (- \frac{15}{17})$ .

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Step 1.1

Multiply $- 1$ by $2$ .

$- 2 (\frac{15}{17}) \cdot (- \frac{8}{17})$

Step 1.2

Combine $- 2$ and $\frac{15}{17}$ .

$\frac{- 2 \cdot 15}{17} \cdot (- \frac{8}{17})$

Step 1.3

Multiply $- 2$ by $15$ .

$\frac{- 30}{17} \cdot (- \frac{8}{17})$

$\frac{- 30}{17} \cdot (- \frac{8}{17})$

Step 2

Move the negative in front of the fraction.

$- \frac{30}{17} \cdot (- \frac{8}{17})$

Step 3

Multiply $- \frac{30}{17} (- \frac{8}{17})$ .

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Step 3.1

Multiply $- 1$ by $- 1$ .

$1 (\frac{30}{17}) \frac{8}{17}$

Step 3.2

Multiply $\frac{30}{17}$ by $1$ .

$\frac{30}{17} \cdot \frac{8}{17}$

Step 3.3

Multiply $\frac{30}{17}$ by $\frac{8}{17}$ .

$\frac{30 \cdot 8}{17 \cdot 17}$

Step 3.4

Multiply $30$ by $8$ .

$\frac{240}{17 \cdot 17}$

Step 3.5

Multiply $17$ by $17$ .

$\frac{240}{289}$

$\frac{240}{289}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$\frac{240}{289}$

Decimal Form:

$0.83044982 \dots$

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