Math, asked by jayasricharyulu9058, 3 months ago

If a² + b² + c² = 12 and a+b+c = 23 ,Find : ab+bc+ca

Answers

Answered by aman0793

1

Please mark my answer as. Best

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Answered by krishnasailor2004

0

Answer:

Formula(a+b+c)²=a²+b²+c²+2ab+2bc+2ca

Step-by-step explanation:

according to formla

(23)²=12+2ab+2bc+2ca

529-12=2ab+2bc+2ca

517=2ab+2bc+2ca

517/2= ab+bc+ca

so ab+bc+ca= 258.5

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