What is the maximum value of 12n, if n is a non-negative integer?
12
1
4
None of these
The maximum value of 12n is 1, when the value of n is 0. For any other value of n, 12n is always less than 1. Hence, its value is 1.
If x,y,z are non negative integers so that x + y + z = 12, then the
maximum value of xyz + xy + yz + zx is