CBSE Class 9 Answered
(x+y)3 + ( y + z)3 + ( z+x)3 - 3(x+y)(y+z)(z+x) = 2 ( x3 + y3 + z3 - 3xyz)
Asked by Vikas | 23 Jan, 2018, 11:07: PM

Answered by Rashmi Khot | 24 Jan, 2018, 09:41: AM
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