Question: . For the functions below, use the second derivative test to identify any critical points anddetermine whether each critical point is a maximum, minimum, saddle

. For the functions below, use the second derivative test to identify any critical points anddetermine whether each critical point is a maximum, minimum, saddle point, or none ofthese.(a)f(x,y)=x2-6x+y2+4y-8(b)f(x,y)=y2+xy+3y+2x+3The problems were taken from the book Calculus 3by Strang et.,al.(OpenStax).1

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