A (r,h) = 2*r*h + 2r2∗π soll maximal werden
U (r,h) = 2*r + 2*h + r*π
2*r + 2*h + r*π= 20 h = 220−2∗r−r∗π
A (r) = 2*r* 220−2∗r−r∗π + 2r2∗π
A (r) = 20r - 2*r^2 - r^2*π + 2r2∗π
A (r) = 20r - 2*r^2 - 2r2∗π
A´ (r)=... A´ (r) =0 r= ... h = ... A (r,h) =...
mfG
Moliets