Question

2 sin 45° - 4 cos 30°

Answer 1

Ответ:

$\sqrt{2} - 2 \sqrt{3} .$

Объяснение:

2 sin 45° - 4 cos 30° = 2 * √2/2 - 4 * √3/2 = √2 - 2√3.

Answer 2

To calculate the value of the expression 2 sin 45° - 4 cos 30°, we can use the known values of sine and cosine for these angles.

sin 45° is equal to 1 / √2, which is approximately 0.707. cos 30° is equal to √3 / 2, which is approximately 0.866.

Now we can substitute these values into the expression:

2 sin 45° - 4 cos 30° = 2(0.707) - 4(0.866) = 1.414 - 3.464 = -2.05

Therefore, 2 sin 45° - 4 cos 30° is approximately equal to -2.05.