Evaluate -cos(0)+sin(0)

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

Step 1

Simplify each term.

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

$- 1 \cdot 1 + \sin (0)$

Multiply $- 1$ by $1$ .

$- 1 + \sin (0)$

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

$- 1 + 0$

$- 1 + 0$

Step 2

Add $- 1$ and $0$ .

$- 1$

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