Trigonometry Examples

$r = v ((2^{2}) + (- 5^{2}))$

Step 1

Simplify each term.

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Step 1.1

Raise $2$ to the power of $2$ .

$r = v (4 - 5^{2})$

Step 1.2

Raise $5$ to the power of $2$ .

$r = v (4 - 1 \cdot 25)$

Step 1.3

Multiply $- 1$ by $25$ .

$r = v (4 - 25)$

$r = v (4 - 25)$

Step 2

Simplify the expression.

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Step 2.1

Subtract $25$ from $4$ .

$r = v \cdot - 21$

Step 2.2

Move $- 21$ to the left of $v$ .

$r = - 21 v$

$r = - 21 v$

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