Determine the amplitude and midline of the periodic functions below and decide whether their graphs are vertical stretches and/or shifts of the graphs of y=sin(t) or y=cos(t).

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Trigonometric Functions: Unit Circle Approach
Section6.4: More Trigonometric Graphs
Problem 63E
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Determine the amplitude and midline of the periodic functions below and decide whether their graphs are vertical stretches and/or shifts of the graphs of y=sin(t) or y=cos(t).

First graph is question (a)

Second graph is question (b)

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