Math, asked by ramdev5171, 1 year ago

Let a+b+c =13,a2+b2+c2=69,then ab+bc+ca?

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Answered by Anshikachauhan

9

(a+b+c)2=a2+b2+c2+ab+bc+cd (13)2=69+ab+bc+cd 169-69=ab+bc+CD=100

Answered by lpunazrul

38

please go thrown it Hope you got ans

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