Question

Знайдіть значення виразу соs13n/6?

Answer 1

Решение смотри внизу.

Answer 2

соs13π/6=сos(2*π+π/6)=cos(π/6)=0,5*√3.

Ответ: 0,5*√3.

Answer 3

To find the value of the expression "cos(13π/6)", we need to know the cosine function's value at the given angle.

The angle 13π/6 is in radians. To simplify it, we can convert it to degrees:

13π/6 radians * (180 degrees/π radians) = 13 * 30 degrees = 390 degrees

Since the cosine function has a periodicity of 360 degrees, we can subtract 360 degrees from 390 degrees to find an equivalent angle within one period:

390 degrees - 360 degrees = 30 degrees

Now, we need to find the cosine of 30 degrees. In trigonometry, we can use the special values for common angles. The cosine of 30 degrees is equal to √3/2.

Therefore, the value of the expression "cos(13π/6)" is:

cos(13π/6) = cos(30 degrees) = √3/2 ≈ 0.866