The ellminant of $\theta$ from $xcos\theta - y sin\theta$ = 2 and $x sin\theta + y cos\theta$ = 4 will give

The ellminant of $\theta$ from $xcos\theta - y sin\theta$ = 2 and $x sin\theta + y cos\theta$ = 4 will give
1). $x^{2} + y^{2}$ = 20
2). $3x^{2} + y^{2$ = 20
3). $x^{2} - y^{2}$ = 20
4). $3x^{2} - y^{2}$ = 10

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