For any integer 'd' and 'b' with HCF (a,b) =1 ,What is HCF (a+b,a-b) e – McqOptions

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1.	For any integer 'd' and 'b' with HCF (a,b) =1 ,What is HCF (a+b,a-b) equal to ?
A.	It is always 1
B.	None of these
C.	It is always 2
D.	Either 1 or 2
Answer» E.

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