if a+b+c = 4 and a square + b square + c square = 14 then find ab+bc+ac
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4
Answer:
so answer is 1
Step-by-step explanation:
hope you understand..
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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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