Question: (4 marks) Find the unit tangent vector I''(t) to the curvo r(t)= <5t,e4t,3>.(6 marks) Find the length of the curve vec(r)(t)= <3t2,2t3,6>, for 0t1.Use lagrange

(4 marks) Find the unit tangent vector I''(t) to the curvo r(t)=<5t,e4t,3>.(6 marks) Find the length of the curve vec(r)(t)=<3t2,2t3,6>, for 0t1.Use lagrange multipliers to find max min values of f(x,y)=x42y3 subject to x2y2=1

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