Math, asked by saumya45, 1 year ago

pls...give me the solution of this image

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Answered by Deepti111
5
using identity (a+b+c)²=a²+b²+c²+2ab+2bc+2ac
=) (12)²=64+2(ab+bc+ac)
=)144-64=2(ab+bc+ac)
=)80/2=ab+bc+ac
ab+bc+ac =40
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