Question

What is the period of the function g(x)=2cos(7x+5)+1

Answer 1

2π/7

Explanation:

A cosine wave is:

y = A cos(2π/T x + B) + C

where A is the amplitude,

T is the period,

B is the horizontal shift,

and C is the vertical shift.

In this case:

7 = 2π/T

T = 2π/7

Answer 2

The period the la function is with the formula that will be explained below

Explanation:

The period is calculated with this formula:

2 π

b

The absolute value is the distance between a number and zero, therefore the distance between zero and 7 is therefore 7; therefore we finally have:

Periodo:

2 π

7