Question

(a-b)(a+b)+(b-c)(b+c)+(c-a)(c+a)=0​

Answer 1

Step-by-step explanation:

a²-b²+b²-c²+c²-a²

after cancelling all we will get ans 0

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Answer 2

Answer : 000

EXPLANATION :

because

A = 0

B = 0

C = 0