Consider the function f(x) = x - 10kx + 25k2x %3D where k is a positive constant. Where is f(x) decreasing? O a. (0,5k) O b. (0,3k) U (3k, 5k) O c. (-∞,0)U (5k, 0) O d. (3k, 5k) O e. (-o, 0) U (3k, 5k) e

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Q: Find the critical points of the function f(x,y)=x^2+y^2+6x−10y+1

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