Which graph represents the reflection in the x-axis of the curve y = cos x

The curve represented by Green color Dotted Lines in the attached figure represents the Reflection in x-axis of the curve .

Step-by-step explanation:

As we know, the value of lies between (-1,1) and its graph is a curve. Its value keeps on varying between -1 and 1 only depending on the value of .

The value of is at . Few values are labeled in the figure attached in the answer. The value is 1 at .

The curve shown in blue color solid line represents the curve of .

And the curve shown in the dotted green color in the attached figure represents the reflection in the x-axis.

-1/2 +2

step-by-step explanation: