SOLUTION: For the parametric equation x=7cost, y=sint, 0<t<2pi, find the coordinates of at least 5 points, graph the curve and indicate the direction of the increasing t.

Algebra ->  Trigonometry-basics -> SOLUTION: For the parametric equation x=7cost, y=sint, 0<t<2pi, find the coordinates of at least 5 points, graph the curve and indicate the direction of the increasing t.       Log On


   

Question 437606: For the parametric equation x=7cost, y=sint, 0
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
For the parametric equation x=7cost, y=sint, 0 find the coordinates of at least 5 points,
graph the curve and indicate the direction of the increasing t.
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If t = 0, 7cos(0) = 7; sin(0) = 0
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If t = 30, 7cos(30) = (7/2)sqrt(3); sin(30) = 1/2
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If t = 150, 7cos(30) = -(7/2)sqrt(3); sin(150) = 1/2
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If t = 210, 7cos(210) = -(7/2)sqrt(3); sin(150) = -1/2
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If t = 330, 7cos(330) = (7/2)sqrt(3) ; sin(330) = -1/2
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cheers,
Stan H.
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