Trigonometry Examples

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

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

Step 1

Multiply

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

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

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Step 1.1

Multiply

- 1

$- 1$ by

2

$2$ .

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

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

Step 1.2

Combine

- 2

$- 2$ and

\frac{15}{17}

$\frac{15}{17}$ .

\frac{- 2 \cdot 15}{17} \cdot \frac{8}{17}

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

Step 1.3

Multiply

- 2

$- 2$ by

15

$15$ .

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

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

\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}

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

Step 3

Multiply

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

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

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Step 3.1

Multiply

\frac{8}{17}

$\frac{8}{17}$ by

\frac{30}{17}

$\frac{30}{17}$ .

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

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

Step 3.2

Multiply

8

$8$ by

30

$30$ .

- \frac{240}{17 \cdot 17}

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

Step 3.3

Multiply

17

$17$ by

17

$17$ .

- \frac{240}{289}

$- \frac{240}{289}$

$- \frac{240}{289}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$- \frac{240}{289}$

Decimal Form:

$- 0.83044982 \dots$

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