Question

Cos (x+ 2π/9)=1Пооомооггитте​

Answer 1

Ответ:

Х = 9k, k є Z

Пошаговое объяснение:

Cos (x+ 2π/9)=1

Cos (2пх/9)=1

2пх/9 = 2k п, k є Z

Х = 9k, k є Z

Answer 2

To solve the equation cos(x + 2π/9) = 1, we need to find the values of x that satisfy the equation.

Remember that the cosine function has a period of 2π, which means it repeats itself every 2π radians. Also, cos(0) = 1.

So, we need to find the values of x for which x + 2π/9 is an angle that has the same cosine value as 0. In other words, we want to find the angles that are an integer multiple of 2π radians away from 0.

The general solution for this equation is:

x + 2π/9 = 2πn, where n is an integer.

Solving for x:

x = 2πn - 2π/9

This equation gives you all possible values of x that satisfy the original equation. Since n can be any integer, you'll have infinitely many solutions.