Trigonometry Examples

$\sqrt{5.4 - 2 \cdot 9.81} (40)$

Step 1

Simplify the expression.

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Step 1.1

Multiply $- 2$ by $9.81$ .

$\sqrt{5.4 - 19.62} \cdot 40$

Step 1.2

Subtract $19.62$ from $5.4$ .

$\sqrt{- 14.22} \cdot 40$

Step 2

Rewrite $- 14.22$ as $- 1 (14.22)$ .

$\sqrt{- 1 (14.22)} \cdot 40$

Step 3

Rewrite $\sqrt{- 1 (14.22)}$ as $\sqrt{- 1} \cdot \sqrt{14.22}$ .

$\sqrt{- 1} \cdot \sqrt{14.22} \cdot 40$

Step 4

Rewrite $\sqrt{- 1}$ as $i$ .

$i \cdot \sqrt{14.22} \cdot 40$

Step 5

Move $40$ to the left of $i \sqrt{14.22}$ .

$40 i \sqrt{14.22}$