Question

if a+b+c = 4 and a square + b square + c square = 14 then find ab+bc+ac

Answer 1

Answer:

so answer is 1

Step-by-step explanation:

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Answer 2

Answer:ab+bc+ca=1

Step-by-step explanation:

Given,

a+b+c=4

a square + b square +c square =14

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

(4)^2=14+2(ab+bc+ca)

16=14+2(ab+bc+ca)

2=2(ab+bc+ca)

1=ab+bc+ca

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