prove ( a- b)^2 + ( b- c)^2 +( c-a)^2 = 2a^2+2b^2 +2c^2 - 2ab -2bc - 2ca
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hey mate here's ur ans ↑↑
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hope it helps u☺☺✌
※※※※※※※※※※※※※※
hope it helps u☺☺✌
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