AP EAMCET Engineering 21 Apr 2019 Shift 2 Paper

Section: Mathematics

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Question : 3 of 160

Marks: +1, -0

Which of the following is divisible by x2−y2 , for all x ≠ y ?

xn−yn for all n ∊ N
xn+yn for all n ∊ N
(xn−yn) (x2n+1+y2n+1) for all n ∊ N
(xn−yn) (xm+ym) for all m , n ∊ N

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