Question

2 sin(-45°) хелппппппп​

Answer 1

Ответ:

-корень из 2

Объяснение:

Answer 2

The sine function is periodic, meaning it repeats its values every 360 degrees (or 2π radians). In trigonometry, the sine of an angle is equal to the y-coordinate of a point on the unit circle corresponding to that angle.

The sine function has the property that sin(-θ) = -sin(θ) for any angle θ. Therefore, we can rewrite sin(-45°) as -sin(45°).

The sine of 45 degrees is equal to √2/2. So, -sin(45°) = -√2/2.

Thus, 2 sin(-45°) = 2 * (-√2/2) = -√2.