Question

2sin3x​

Answer 1

$\sin3x>-\frac{\sqrt{2}}{2}$

Тогда:

$-\frac{\pi}{4}+\pi k$, k=0,1,2...

Итого:

$-\frac{\pi}{12}+\frac{\pi k}{3}$

Answer 2

The expression "2sin(3x)" represents a trigonometric function. It is the sine function (sin) of three times the angle "x," and the result is multiplied by 2. In mathematical notation, it can be written as:

2sin(3x)

This function describes a sinusoidal wave that oscillates with a frequency three times that of a regular sine wave. The factor of 2 in front of the sine function scales the amplitude of the wave. Depending on the specific values of "x" or the range of angles you are interested in, you can evaluate this expression to find its numerical value.