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Mathematics Forum
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| Author | Message / Information |
| devilzsoul Quote | Reply | | Need Help with following Sine wave questions posted on: 11/6/2006 10:19:42 PM Hi I am trying to solve these and i cant understand them .. please help me Q1:: Write an equation for a sine curve that has the following characteristics: - amplitude of 5, -max of 7, min of -3 and one cycle starts at pi/8 and this cycle ends at 9 pi/8 Q2:the number of hrs of daylight for a particular area is related to the day of the year as follows: D=12 +2.5 sin[2pi/365(t-81)], where D is the number of hours of daylight and t is the day of the year, with t= 1 representing january 1st. find the amplitude, period , phase shift and vertical shift for the equation. |
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