Question

Which of the following is the graph of y = cos(2x)?

Answer 1

Answer:

Select the one which meets the following characteristics.

Step-by-step explanation:

y = cos(2x)

Characteristics:

Mean line at y = 0

Amplitude = 1

Period = 360/2 = 180° or pi radians

i.e one complete cos cycle is 0 to 180, next is 180 to 360 and so on

Range : from -1 to 1

Answer 2

Answer:

answer is a on edge2020

Step-by-step explanation:

taking the test, graphed it