Question

2cos30° - 2 sin 60° = ........

Answer 1

Ответ: 2cos30°-2sin60°=2*$\frac{\sqrt{3} }{2}$-2*$\frac{\sqrt{2} }{2}$=$\frac{2\sqrt{3} }{2}$-$\frac{2\sqrt{2} }{2}$=$\sqrt{3}$-$\sqrt{2}$≈0,1

Объяснение: вроде так)))

Answer 2

To find the value of the expression 2cos30° - 2sin60°, we'll use the trigonometric identities and simplify step by step.

Recall the values of cosine and sine for 30° and 60°: cos 30° = √3/2 sin 60° = √3/2

Now let's substitute these values into the expression:

2cos30° - 2sin60° = 2(√3/2) - 2(√3/2)

Simplifying further:

= √3 - √3 = 0

Therefore, 2cos30° - 2sin60° equals 0.