MathematicsEasy128×since 2002Q5574If the pair of lines ax2+2hxy+by2+2gx+2fy+c=0a{x^2} + 2hxy + b{y^2} + 2gx + 2fy + c = 0ax2+2hxy+by2+2gx+2fy+c=0 intersect on the yyy-axis then :A2fgh=bg2+ch22fgh = b{g^2} + c{h^2}2fgh=bg2+ch2Bbg2≠ch2b{g^2} \ne c{h^2}bg2=ch2Cabc=2fghabc = 2fghabc=2fghDnone of theseCheck answerSkip