2*sin(x)*cos(x)*ctg2*x если x=-3 (упростите выражение)

$$2 sin{left (x right )} cos{left (x right )} cot{left (2 x right )}$$

$$2 sin{left (x right )} cos{left (x right )} cot{left (2 x right )}$$

((2*sin((-3)))*cos((-3)))*cot(2*(-3))

$$2 sin{left ((-3) right )} cos{left ((-3) right )} cot{left (2 (-3) right )}$$

((2*sin(-3))*cos(-3))*cot(2*(-3))

$$2 sin{left (-3 right )} cos{left (-3 right )} cot{left (-3 cdot 2 right )}$$

2*cos(3)*cot(6)*sin(3)

$$2 sin{left (3 right )} cos{left (3 right )} cot{left (6 right )}$$

2.0*cos(x)*cot(2*x)*sin(x)

cos(2*x)

$$cos{left (2 x right )}$$

$$cos{left (2 x right )}$$

cos(2*x)

$$cos{left (2 x right )}$$

/ 2
-1 + cot (x)/*cos(x)*sin(x)
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cot(x)

$$frac{sin{left (x right )} cos{left (x right )}}{cot{left (x right )}} left(cot^{2}{left (x right )} – 1right)$$