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25-07-2017
Mathematics

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What angle is an x–intercept for the function y= cos(.5x)

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RickyChen RickyChen

25-07-2017

x-intercept appears at when y = 0

So when cos(0.5x) = 0 -> 0.5x = pi/2 + n*pi, where n is any random integers

So x = pi + 2npi, so the angle can be pi, 3pi, 5pi, so on

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