Answer
The biggest or red curve is y=cos x
The medium or blue curve is y=0.6 cos x
The smallest or green curve is y=0.2 cos x.
Hence, it is clear that smaller the value of A, smaller is the amplitude, and the curve gets smaller.
Work Step by Step
The biggest or red curve is y=cos x
The medium or blue curve is y=0.6 cos x
The smallest or green curve is y=0.2 cos x.
Hence, it is clear that smaller the value of A, smaller is the amplitude, and the curve gets smaller.