Question 194801
I'm trying to plot points on a graph. the problem is y=3sec4x. I have all the points but one. I'm stuck at 5 pi/2. I have no idea how to find this on the unit circle. Explain plz?
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Try cos(5pi/2) which is the same as cos(pi/2) = 0
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Since sec is the inverse of cos, sec(5pi/2) is undefined.
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Cheers,
Stan H.