Question

Cos x/3 =1/√2 срочно

Answer 1

Ответ на картинке внизу

Answer 2

To solve the equation cos(x/3) = 1/√2, we'll follow these steps:

Step 1: Find the angle whose cosine is 1/√2. Step 2: Solve for x.

Step 1: The cosine of π/4 (45 degrees) is 1/√2. So, we have:

cos(π/4) = 1/√2

Step 2: Now, we need to find the value of x in the equation cos(x/3) = cos(π/4).

To do that, we set the arguments inside the cosine functions equal to each other:

x/3 = π/4

Next, we solve for x:

x = π/4 * 3

x = 3π/4

So, the value of x that satisfies the equation cos(x/3) = 1/√2 is x = 3π/4.