Find all values of t at which the parametric curve has (a) horizontal tangent line and (b) a vertical tangent line. x = 2sin(t), y = 4cos(t) (0<<2π)

Algebra and Trigonometry (MindTap Course List)
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Author:James Stewart, Lothar Redlin, Saleem Watson
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Chapter8: Polar Coordinates And Parametric Equations
Section8.CT: Chapter Test
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Find all values of t at which the parametric curve has (a) horizontal
tangent line and (b) a vertical tangent line.
x = 2sin(t), y = 4cos(t) (0<t<2n)
Transcribed Image Text:Find all values of t at which the parametric curve has (a) horizontal tangent line and (b) a vertical tangent line. x = 2sin(t), y = 4cos(t) (0<t<2n)
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