Question

a²+b²+c²=14 a+b+c=6 than find ab+bc+ca=?​

Answer 1

Step-by-step explanation:

Step-by-step explanation:[a+b+c]^2=a^2 +b^2+c^2+2*ab+2*bc+2*ca

such that; 6^2=14+2[ab+bc+ca]

36-14/2=ab+bc+ca