Trigonometry Examples

2 (- \frac{5}{13}) (\frac{12}{13})

$2 (- \frac{5}{13}) (\frac{12}{13})$

Step 1

Multiply

2 (- \frac{5}{13})

$2 (- \frac{5}{13})$ .

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Step 1.1

Multiply

- 1

$- 1$ by

2

$2$ .

- 2 (\frac{5}{13}) \cdot \frac{12}{13}

$- 2 (\frac{5}{13}) \cdot \frac{12}{13}$

Step 1.2

Combine

- 2

$- 2$ and

\frac{5}{13}

$\frac{5}{13}$ .

\frac{- 2 \cdot 5}{13} \cdot \frac{12}{13}

$\frac{- 2 \cdot 5}{13} \cdot \frac{12}{13}$

Step 1.3

Multiply

- 2

$- 2$ by

5

$5$ .

\frac{- 10}{13} \cdot \frac{12}{13}

$\frac{- 10}{13} \cdot \frac{12}{13}$

\frac{- 10}{13} \cdot \frac{12}{13}

$\frac{- 10}{13} \cdot \frac{12}{13}$

Step 2

Move the negative in front of the fraction.

- \frac{10}{13} \cdot \frac{12}{13}

$- \frac{10}{13} \cdot \frac{12}{13}$

Step 3

Multiply

- \frac{10}{13} \cdot \frac{12}{13}

$- \frac{10}{13} \cdot \frac{12}{13}$ .

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Step 3.1

Multiply

\frac{12}{13}

$\frac{12}{13}$ by

\frac{10}{13}

$\frac{10}{13}$ .

- \frac{12 \cdot 10}{13 \cdot 13}

$- \frac{12 \cdot 10}{13 \cdot 13}$

Step 3.2

Multiply

12

$12$ by

10

$10$ .

- \frac{120}{13 \cdot 13}

$- \frac{120}{13 \cdot 13}$

Step 3.3

Multiply

13

$13$ by

13

$13$ .

- \frac{120}{169}

$- \frac{120}{169}$

- \frac{120}{169}

$- \frac{120}{169}$

Step 4

The result can be shown in multiple forms.

Exact Form:

- \frac{120}{169}

$- \frac{120}{169}$

Decimal Form:

- 0.71005917 \dots

$- 0.71005917 \dots$

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

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