Trigonometry Examples

$\sqrt{\frac{1 - (- \frac{21}{21})}{2}}$

Step 1

Cancel the common factor of $21$ .

Tap for more steps...

Step 1.1

Cancel the common factor.

$\sqrt{\frac{1 - - \frac{21}{21}}{2}}$

Step 1.2

Rewrite the expression.

$\sqrt{\frac{1 - (- 1 \cdot 1)}{2}}$

$\sqrt{\frac{1 - (- 1 \cdot 1)}{2}}$

Step 2

Multiply $- (- 1 \cdot 1)$ .

Tap for more steps...

Step 2.1

Multiply $- 1$ by $1$ .

$\sqrt{\frac{1 - - 1}{2}}$

Step 2.2

Multiply $- 1$ by $- 1$ .

$\sqrt{\frac{1 + 1}{2}}$

$\sqrt{\frac{1 + 1}{2}}$

Step 3

Add $1$ and $1$ .

$\sqrt{\frac{2}{2}}$

Step 4

Divide $2$ by $2$ .

$\sqrt{1}$

Step 5

Any root of $1$ is $1$ .

$1$

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