Add the following:l2+m2,m2+n2,n2+l2+2lm+2mn+2nl

1.	Add the following:l2+m2,m2+n2,n2+l2+2lm+2mn+2nl
Answer» Add the following: $l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2} + 2 l m + 2 m n + 2 n l$

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