14. Find the maximum value of the function f(x,y,z)=4x+10y+14z subject to the constraint x²+y²+z²=78.
(A) f(2,5,7)=156
(B) f(4,10,14)=312
(C) f(5,3,5)=120
(D) $(15,8,19)=406

相關試題

相關試卷