If the sum of the squares of nonnegative real numbers a,b, and c is 13, and ab + bc + ca = 6, then what is the sum of a,b, and c?

AbooshAndrew Mar 6, 2019

#2**0 **

Good anwnser Cphill. But a,b, and c are all the same, should they not be the same variable?

lacichubean Mar 6, 2019