Consider the curve r(t) = = (sin(t), In(t), 2t + t°) (a) Compute the tangent vector at time t (b) Compute the speed at time t = π (c) Setup the integral for the arc length over the interval from t = 3 to t = 5. (do not evaluate the integral)

Q: 2. Find the length of the curve 0<t< 2n. r(t) e'i + e' sin 2tj + e' cos 2tk,

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Q: Find the length of arc from (2,1) to (4,4) of the curve x = 2√y

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