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A: Note:- Since you have asked multiple question As per our policy, we will solve the first question…
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Q: r(t) = (e' cos t)i + (e' sin t)j + e'k, -In 4 < t< 0
A: rt=et cost i+et sint j+et k, -ln4≤t≤0 Differentiating with respect to t, we get vt=drtdt=ddtet…
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Q: Find the area of the closed region enclosed by the curve defined parametrically by a = 4 cos t, y =…
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