Math, asked by Airtick, 1 year ago

find the value sum q15

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Answered by SahilTony111

0

a3+b3+c3-3abc= (a+b+c) (A2+b2+c2 -ab-ca-bc)
=6( (a+b+c)2-2(ab+bc+ca)- 11)
= 6(36-22-11)
=18

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