Answers

2016-01-22T17:31:50+05:30
 (a +b +c)² = a² + b² + c² + 2ab +2bc +2ca
0
2016-01-22T17:32:08+05:30
(a+b+c)² = a² + b² +c² + 2ab + 2bc + 2ca
1 5 1