Trigonometry Examples

$\cos (0 + 1) = \sin (0)$

Step 1

Subtract $\sin (0)$ from both sides of the equation.

$\cos (0 + 1) - \sin (0) = 0$

Step 2

Simplify $\cos (0 + 1) - \sin (0)$ .

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Step 2.1

Simplify each term.

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Step 2.1.1

Add $0$ and $1$ .

$\cos (1) - \sin (0) = 0$

Step 2.1.2

Evaluate $\cos (1)$ .

$0.99984769 - \sin (0) = 0$

Step 2.1.3

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

$0.99984769 - 0 = 0$

Step 2.1.4

Multiply $- 1$ by $0$ .

$0.99984769 + 0 = 0$

Step 2.2

Add $0.99984769$ and $0$ .

$0.99984769 = 0$

Step 3

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.