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Author Question: An eagle is flying on a helical path so that at time t its position is given by x = sin t, y= cos t, ... (Read 61 times)

geoffrey

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Question 1

Let z = f(x, y), where x = uv2, and y = . Use the chain rule to find at (u, v) = (2,- 1) given that
fx(2,- 1) = - 7,  fy(2,- 1) = 5,  fx(2,- 2) = 3, and  fy(2,- 2) = -2.
◦ -12
◦ 4
◦ 2
◦ -5
◦ 5

Question 2

An eagle is flying on a helical path so that at time  t  its position is given by  x = sin t,  y= cos t,  z = 2t. It is measuring the change of a quantity  f  whose value at position (x, y, z) is given by f(x, y, z) = x2 + xy2 + z.  How fast does the eagle experience  f  changing at time  t?
◦ 2 sin t cos t - cos3 t + 2 sin2 t cos t + 2
◦ 2 sin t cos t + cos3 t - 2 sin2 t cos t + 2
◦ 2 sin t cos t - cos2 t - 2 sin2 t cos t + 2
◦ 2 sin t cos t + cos3 t - 2 sin2 t cos t + 1
◦ 2 sin t cos t + cos2 t + 2 sin2 t cos t + 2


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Marked as best answer by geoffrey on May 27, 2021

jennafosdick

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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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geoffrey

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Reply 2 on: May 27, 2021
:D TYSM


aliotak

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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