Question

if a + b + C is equal to 13 AB + BC + CA is equal to 50 find a square + b square + c square​

Answer 1

Answer:

it is your question answer

tell me it answer is wright or wrong

Answer 2

Hey mate,

Answer

Formula,

(a+b+c)2=a2+b2+c2+2ab+2bc+2ca

⇒(a+b+c)2=a2+b2+c2+2(ab+bc+ca)

Given,

ab+bc+ca=10,a2+b2+c2=16

⇒(a+b+c)2=16+2(10)

a+b+c=16+20=6

Hope it helps...