Grade 11Algebra

Let a,b,,c be real nos. If a+b+c=7 [1/(a+b)]+[1/(b+c)]+[1/(c+a)]=7/10 Then [a/(b+c)]+[b/(c+a)]+[c/(a+b)]=? Please give the solution

Shrey

12 Years agoGrade 11

2 Answers

Parvez ali

Approved Tutor Answer12 Years ago

Thanks & Regards

Parvez Ali

askIITians Faculty

Sunil Raikwar

Approved Tutor Answer12 Years ago

[1/(a+b)]+[1/(b+c)]+[1/(c+a)]=7/10

multiply both sides by 7

[7/(a+b)]+[7/(b+c)]+[7/(c+a)]=49/10

[(a+b+c)/(a+b)]+[(a+b+c)/(b+c)]+[(a+b+c)/(c+a)]=49/10

[1+{c/(a+b)}]+[1+{a/(b+c)}]+[1+{c/(a+b)}]=49/10

[c/(a+b)]+[a/(b+c)]+[b/(c+a)]=(49/10)-3

[a/(b+c)]+[b/(c+a)]+[c/(a+b)]=19/10

Thanks & Regards

Sunil Raikwar

askIITians faculty

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Let a,b,,c be real nos. If a+b+c=7 [1/(a+b)]+[1/(b+c)]+[1/(c+a)]=7/10 Then [a/(b+c)]+[b/(c+a)]+[c/(a+b)]=? Please give the solution

Shrey

2 Answers

Parvez ali

Sunil Raikwar

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