Question: Find the period and amplitude. 1. y = 2 sin 5x 2. y = 3 cos 2x 3. y =3/4 cos x/2 4. y =

Find the period and amplitude.
1. y = 2 sin 5x
2. y = 3 cos 2x
3. y =3/4 cos πx/2
4. y = −5 sin πx/3

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