The elevation of a mountain above sea level is given by f(x,y) = 3000e-r² +2y*y/100 (in meters). The positive x-axis points east and the positive y-axis points north. A climber is at the point (10, 10, 3000e 3). Find a vector in the direction of steepest ascent. (a) State the concept necessary to solve this problem. (b) Calculate the solution.

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