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Chapter 6: Q 22. (page 409)

Match the given function to one of the graphs.

y=2cos蟺2x.

Short Answer

Expert verified

The correct option is (E). The graph is

Step by step solution

01

Step 1. Given Information.

Match the given function to one of the graphs.

y=2cos蟺2x.

02

Step 2. Graphing Utility.

For 蝇>0, the amplitude and period of y=Asin蝇xis given by

Amplitude =A, period =T=2蟺蝇.

On comparing, we get

A=2,蝇=蟺2

Period , T=2蟺蟺2=4.

The graph is

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