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Question: cstpswwwaynoothanversity eyevte07 mt20rslanuary pti obtain fr and fy 14 marks...

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cstpswww.aynoothanversity eyevte07 MT20rs-lanuary pti Obtain fr and fy [14 marks] (3) Let f(r, y) log(ry) 5 marks] (b) Sketch level curves of the surface 2 f(z, y) for levels c 0, 1 and -1. (Sketch 9 marks (c) Obtain the equation of the tangent plane to the surface at the point (1,1,0). (a) Write down the gradient vector of f the curves on the same diagram.) [6 marks] (4) Let f(z, y) y y2- +4. ye here to seanh

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