Part b: Find the inverse function to A(r). Your answer should look like r="some expression involving A". Solution For (B): A(r)= 2mr2 + 12nr A = 2mr2 + 12ur 2mr2 + 12nr-A = 0 r = -12\\pi +(\\sqrt(144\\pi ^(2)+8\\pi A))/(4\\pi ) Use quadratic formula r(A) = -3 + (\\sqrt(144\\pi ^(2)+8\\pi A))/(4\\pi ) for the given domain Domain = (0,00) Range: (0,00)