Question

Number of values of afor which the system of equation x^2=y^2 and (xy)^2+y^2=1 has exactly three solution

Answer 1

IF
$x ^{2} + {y}^{2} = 2 \\ and \\ {x}^{2} {y}^{2} + {y = 1} \\ \\ we \: know \: that \:solution \\ \: of \: numbers \: is \: depend \: on \: highest \\ no \: of \: degrees \: so \: there \: is \: only \: to \: \\ solution \: are \: there \:$

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