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For the paramaterized curve r(t) = < 2/3t^(3/2) , 3t+7, 4t+13>, for 0 <= t <=11, find its arc length.
Find a vector parametric equation r? (t) for the line through the points P=(-4,-3,5) and Q=(-2,-8,3) for each of the given conditions on the parameter t . (a) If r? (0)=<-4,-3,5> and r? (5)=<-2,-8,3> , then r? (t)= (b) If r? (3)=P and r? (7)=Q , then r? (t)= (c) If the points P and Q correspond to the parameter values t=0 and t=-2 , respectively, then r? (t)=
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