If the total cost function for a factory manufacturing lamps is C(x)=25+10x+x2. Find the function for average cost (a) 25/x+10+x (b) 25x+10x2+x3 (c) 25/x2+1 (d) 25+10+x2 (e) 10+2x (c) (e) (d) (a) (b) Question 2 5 pts If the total cost function for a factory manufacturing lamps is C(x)=25+10x+x2. Find the derivative of the average cost function: (a) 25/x+10+x (b) 25x+10x2+x3 (c) 25/x2+1 (d) 25+10+x2 (e) 10+2x (e) (b) (c)