if a + b + C is equal to zero prove that a cube plus b cube + C cube
Answers
Answered by
0
Answer:
Step-by-step explanation:
a + b + C=0
a+b=-c-----------------(1)
(a+b)³=(-c)³
a³+b³+3ab(a+b)=-c³
putting a+b=-c from (1)
a³+b³+3ab(-c)=-c³
a³+b³+c³-3abc=0
a³+b³+c³=3abc
Similar questions