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Earn 100

One of the line represented by the equation ax2+bxy+cy2=0 bisects an angle between the co-ordinate axes if

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Important Questions on Pair of Straight Lines

MEDIUM
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IMPORTANT
If the equation ax2+2hxy+by2=0 has one line as the bisector of angle between the co-ordinate axes, then
HARD
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IMPORTANT
If the lines represented by the equation 2x2-3xy+y2 makes angles α and β with X-axis, then cot2α+cot2β=
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If the lines represented by the equation ax2-bxy-y2=0 makes angles αand β with the X-axis, then tanα+β=
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IMPORTANT
If a+3b 3a+b=4h2, then the angle between the lines represented by ax2+2hxy+by2=0 is
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IMPORTANT
The angle between the lines represented by the equation ax2+xy+by2=0 will be 45°, if
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IMPORTANT
If the angle between the lines represented by the equation y2+kxy-x2tan2 A=0 be 2A, then k=