(a/b)3 + (b/c)3 + (c/a)3 - 3
Answers
Answered by
0
Step-by-step explanation:
3a
2
(c−b)+3b
2
(a−c)+3c
2
(b−a)
(a−b)
3
+(b−c)
3
+(c−a)
3
=(a
3
−3a
2
b+3ab
2
−b
3
)+(b
3
−3b
2
c+3bc
2
−c
3
)+(c
3
−3c
2
a+3ca
2
−a
3
)
=−3a
2
b+3ab
2
−3b
2
c+3bc
2
−3c
2
a+3ca
2
=3a
2
(c−b)+3b
2
(a−c)+3c
2
(b−a)
Similar questions