Answer
$3,\frac{\pi}{2}$.
Work Step by Step
Given $f(x)=3sin(4x)$, we can find its amplitude$=3$ and period$=\frac{2\pi}{4}=\frac{\pi}{2}$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 9 - Analytic Geometry - Section 9.7 Plane Curves and Parametric Equations - 9.7 Assess Your Understanding - Page 714: 1
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