NIMCET 2011 Question Paper with solutions

Question : 17 of 120

Marks: +1, -0

The number of distinct solutions

(x, y)

of the system of equations

x^{2}=y^{2}

and

(x-a)^{2}+y^{2}=1

, where

a^{'}

is any real number, can only be

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