Answer
$2 \sin{x} \cos{x}$
Work Step by Step
$\sin{(2x)} = \sin({x+x})$
$\sin{(A+B)} = \sin{A} \cos{B} + \cos{A} \sin{B}$
$\sin{(x+x)} = \sin{x} \cos{x} + \cos{x} \sin{x} = 2 \sin{x} \cos{x}$
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