Question

If a2+b2+c2=250and ab+BC++ca=3then find the value of a+b+c​

Answer 1

Answer:

Step-by-step explanation:

(a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ac)

(a+b+c)^2=250+2*3

(a+b+c)^2=250+6

(a+b+c)^2=256

(a+b+c) =√256

            =16