Evaluate sin(2arccos(1))

$\sin (2 \arccos (1))$

Step 1

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

$\sin (2 \cdot 0)$

Step 2

Multiply $2$ by $0$ .

$\sin (0)$

Step 3

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

$0$

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