here is the formula S=f(x)= 6(pi)r^2
i believe that the inverse is r=sqrt s / 6 pi . am I correct or have I blundered.
thanks matt.
I've got another question for the same problem f(r)=6*pi*r^2. this is what im trying to find. f^-1(f(r)).
heres what i know from the problem already.
f(r)= 6*pi*r^2
f(f^-1(s))= s
I was able to work that far but I cant mentally picture what the formula f^-1(f(r)) is. all I know is that the formulas should equal r.
Please post separate problems in a different thread. You might at this stage want to read the forum rules:
http://www.mathhelpforum.com/math-he...php?do=cfrules