please answer
no wrong answer otherwise reported that answer
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Answered by
5
Answer:
I only know answer of C.
So, hope it helps...
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Answered by
2
Answer:
Step-by-step explanation:
- (a+b)(a-b)=a²-b² 2.(b+c)(b-c)=b²-c² 3.(c+a)(c-a)=c²-a² therefore, the result=a²-b²+b²-c²+c²-a²=0
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