(adsbygoogle = window.adsbygoogle || []).push({}); 1.Consider the process A[1,1] and B [-1,4]; let Vector U=AB

1a.Write u using components. Write u using the standard basis.

1b.Draw u as a position vector. Find u.

1c.If C [1,1] and D [5,y], then find the value of y so that AB is parallel to CD.

2. Find the length of the curve 2t^{2}3t^{2}, 0<t<[3/4]

3. Find the equation of the sphere with center [2,3,4] and is tangent to thee xyplane. At what points does the sphere intersect the z axis?

2.distance formula

3.

My Answers

1a. -1-1=-2 4-1=3 u=<-2,3> u=<1,1> <-1,4>

1b. u=^{-22+32[1/2]}=13^{1/2}

1c. [5-1/2],[y-1/2] [2,y-1/2]

2. [PLAIN]http://img255.imageshack.us/img255/9178/hillo1.png [Broken]

3.[PLAIN]http://img408.imageshack.us/img408/9339/hillo2.png [Broken]

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# Homework Help: Calc3 vectors, lenght of curve, equation of the sphere.

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