What is (a+b+c)²=........
manasiriya2003:
It is asquare +bsquare +csquare +2ab +2bc +2ca
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ANSWER :
(a+b+c)² =a²+b²+c²+2ab+2bc+2ca
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Use the formula for (a+b+c)^2 = a^2 + b^2 + c^2 +2ab +2bc + 2 ca.
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