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Author Question: Describe the curve r(t) = (sin t) i + (cos t) j + k. (Read 86 times)

nautica902

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on: May 27, 2021

Question 1

What kind of curve  is  r(t) = (sin t) i + (sin t) j + 2(cos t) k?
◦ a circular helix
◦ a parabola
◦ a circle
◦ an ellipse (but not a circle)
◦ an oval plane curve that is, however, not an ellipse

Question 2

Describe the curve r(t) = (sin t) i + (cos t) j + k.
◦ the circle (of radius 1) in which the plane  z =  intersects the sphere  x2 + y2 + z2 = 4
◦ the circle (of radius ) in which the plane  z = 1  intersects the sphere  x2 + y2 + z2 = 3
◦ a helix wound around the cylinder  x2 + y2 =  3
◦ the circle (of radius ) in which the plane  z =  intersects the cylinder  x2 + y2 = 1
◦ a helix wound around the cylinder  x2 + y2 = 1
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Marked as best answer by nautica902 on May 27, 2021

ryansturges

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Reply #1 on: May 27, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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nautica902

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Reply 2 on: May 27, 2021
Excellent

ghepp

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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