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Help pls :) !!!!!!!!!!!!!!!!!-example-1
User Shinjuo
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1 Answer

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Answer:


\displaystyle \text{A) }-(2\pi)/(3)

Explanation:

Trigonometric Functions

Horizontal shifts of trigonometric functions are changes that affect the input axis values and shift the function left or right.

If the function is to be shifted left a units, then the variable x is replaced by x+a and if the function is shifted right a units, then x is replaced by x-a.

The function is:


y=2\cos\left(x+(2\pi)/(3)\right)+1

Note the argument of the cosine is
x+(2\pi)/(3) which means the value of a is
-(2\pi)/(3) and the function is shifted left by
(2\pi)/(3).

Answer:


\displaystyle \text{A) }-(2\pi)/(3)

User BhishanPoudel
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