The curve C has parametric equations x = sin t, y = cos 2t + 1, 0
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The curve C has parametric equations x = sin t, y = cos 2t + 1, 0 < t < 2π. Given that the line y = k, where k is a constant, intersects the curve,
a. Show that 0 < k < 2
b. Show that if the line y = k is a tangent to the curve, then k = 2.
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a cos 2t 1 k max of cos 2t 1 so k 1 1 2 min of cos 2t ...View the full answer
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Related Book For
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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