Trigonometry Examples

$\cos (0) + i \sin (0)$

Step 1

Simplify each term.

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Step 1.1

The exact value of $\cos (0)$ is $1$ .

$1 + i \sin (0)$

Step 1.2

The exact value of $\sin (0)$ is $0$ .

$1 + i \cdot 0$

Step 1.3

Multiply $i$ by $0$ .

$1 + 0$

$1 + 0$

Step 2

Add $1$ and $0$ .

$1$

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