(A) We wish to find the minimum of the following cost function. If we wish to minimize this function using Gradient Descent starting at x=y=5. determine if the procedure will converge for a step-size (learning rate) of 0.052 Give a mathematical justification for your answer (Marks: 2.5+1.5+4=8) f(x,y)=5x7 - 20x +4 +100y2 30y +6. (A) We wish to find the minimum of the following cost function. If we wish to minimize this function using Gradient Descent starting at x=y=5. determine if the procedure will converge for a step-size (learning rate) of 0.052 Give a mathematical justification for your answer (Marks: 2.5+1.5+4=8) f(x,y)=5x7 - 20x +4 +100y2 30y +6