trig
posted by jim .
y= sin x/2, 0 less than equal to x less than equal to 4pi... the question says state the amplitude and period for each equation and graph it over the indicated interval

since period of sin(x) is 2pi, period of sin(x/2) is such that 0 <= x/2 <= 2pi, or 0 <= x <= 4pi
amplitude is unchanged from sin(x)
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