Trigonometry Examples

$0.707 \cos (45)$

Step 1

The exact value of $\cos (45)$ is $\frac{\sqrt{2}}{2}$ .

$0.707 \frac{\sqrt{2}}{2}$

Step 2

Multiply $0.707 \frac{\sqrt{2}}{2}$ .

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Step 2.1

Combine $0.707$ and $\frac{\sqrt{2}}{2}$ .

$\frac{0.707 \sqrt{2}}{2}$

Step 2.2

Multiply $0.707$ by $\sqrt{2}$ .

$\frac{0.99984898}{2}$

Step 3

Divide $0.99984898$ by $2$ .

$0.49992449$