MATH23 Practice Final Solution - Old\/Practice Final Exam Solutions 1 For vectors A = 2 3 k and B = 3k nd(a A 2B We have A 2B = 2 3 k 2 3k = 4 3 7k(b A B

MATH23 Practice Final Solution - Old/Practice Final Exam...

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Old/Practice Final Exam Solutions 2.Find the line of intersection between the planesP1defined by2x+3y-z= 0andP2defined byx+ 3y+z= 1. 1
4.(a)Iff(x, y) =exy, find∂f∂x. (b)Iff(x, y) = (2x+ 3y)2, find∂f∂y. 2
5.Find the tangent plane to the surfaceSdefined byx2+y2-z2

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