Equation x^(2) +k(1)y^(2) +2k(2)y = a^(2...

Equation `x^(2) +k_(1)y^(2) +2k_(2)y = a^(2)` represents a pair of perpendicular straight lines if

Equation x^(2) +k(1)y^(2) +2k(2)y = a^(2) represents a pair of perpend...
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If the equation x^(2)+py^(2)+y=a^(2) represents a pair of perpendicula...
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Equation x^(2) +k(1)y^(2) +2k(2)y = a^(2) represents a pair of perpend...
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The equation x^(2)+k(1)y^(2)+k(2)xy=0 represents a pair of perpendicul...
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Equation x^(2)+m(1)y^(2)+m(2)xy=0 jointly represents a pair of perpend...
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If the equation (kx+y)^(2)=k(x^(2)+y^(2)) represents a pair of perpend...
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a(x^(2)-y^(2))+xy=0 represents a pair of straight lines for
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Equation x^(2) +k(1)y^(2) +2k(2)y = a^(2) represents a pair of perpend...
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Does x^(2)+y^(2)=0 represent a pair of straight lines
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