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Find dy/dx if y=cost, x=sint

  1. Could someone please check my work on the following problems? I want to be sure that I'm doing them correctly; i'm just required
    1. answers icon 1 answer
    2. Joesph asked by Joesph
    3. views icon 560 views
  2. Can somebody explain how the derivative of (cost-sint)i and (cost+sint)j equal -2sinti and 2costj. Should it be (-sint-cost)i
    1. answers icon 1 answer
    2. Anonymous asked by Anonymous
    3. views icon 484 views
  3. Q.NO.4: Find the arc length of the graph of r(t).r(t)=(t^2)i +(cost + t sint)j +(sint- t cost)k , 0≤t≤π
    1. answers icon 2 answers
    2. akash asked by akash
    3. views icon 661 views
  4. find an equation to the curve at the point corresponding to the given value of the parameter.x = tcost y = tsint when t = π i
    1. answers icon 1 answer
    2. Hanky asked by Hanky
    3. views icon 690 views
  5. Find dy/dx if y=cost, x=sint
    1. answers icon 3 answers
    2. Sinachi asked by Sinachi
    3. views icon 213 views
  6. Find an arc length parametrization of r(t) = ⟨e^(t)sint, e^(t)cost, 8e^(t)⟩
    1. answers icon 0 answers
    2. EKM asked by EKM
    3. views icon 528 views
  7. circle x^2 +y^2 = 1.r(t) = (sint)i +(cost)j at both pi/4 and pi/2 Find velocity & acceleration Thx!
    1. answers icon 1 answer
    2. Jaime asked by Jaime
    3. views icon 525 views
  8. Find the arc length of the curve which is parametrized in three dimensions by x(t) = e^t cost , y(t) = e^t sint , z(t) = e^t
    1. answers icon 1 answer
    2. Anonymous asked by Anonymous
    3. views icon 373 views
  9. find the curvature of vector function r(t)= <t^2,sint-tcost,cost+tsint>
    1. answers icon 5 answers
    2. Bill asked by Bill
    3. views icon 194 views
  10. find the tangent line equation at x=cost+sin2t, y=sint+cos2t, t=0
    1. answers icon 3 answers
    2. Lielle asked by Lielle
    3. views icon 984 views