Question

A+b+c=14,a²+b²+c²=100

Answer 1

Answer:

Given, a+b+c =14

(a+b+c) 2 =14*14

a2+b2+c2+2(ab+bc+ca)=196...

given that, a2+b2+c2=96

so, 2(ab+bc+ca)=196-96 = 100 ☺☺

So, ab+bc+ca=100/2=50 (answer)....

Hope u understand..

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Step-by-step explanation:

Answer 2

Answer:

Given, a+b+c =14

(a+b+c) 2 =14*14

a2+b2+c2+2(ab+bc+ca)=196...

given that, a2+b2+c2=96

so, 2(ab+bc+ca)=196-96 = 100 ☺☺

So, ab+bc+ca=100/2=50 (answer)....