Question

if a^2+b^2+c^2 =16 and ab +bc +CA =10 find a +b + c+ ​

Answer 1

Answer:

answer is 6

or answer can be -6

Answer 2

Answer:

Step-by-step explanation:

We know

(a+b+c)^2=

a^2+b^2 +c^2 +2(ab+bc+ca)

16 + 2(10)

=16 +20 =36

(a+b+c)= √36 = 6