If ax^(2)+12xy+9y^(2)=0 epresents two co...

If `ax^(2)+12xy+9y^(2)=0` epresents two coincident lines then a=

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Prove that the equations 6x^(2) + xy -12y^(2)–14x + 47y -40 = 0 and 14x+ xy- 4y^(2)-30x +15y= 0 represents two pairs of concurrent lines and that lines of first pair are equally inclined to those of second pair.

Prove that the equation 6x^(2)+xy-12y^(2)-14x+47y-40=0 and 14x^(2)+xy^(2)-30x+15y=0 represents two pairs of concurrrent lines and that pair of lines area equally inclined to each other.

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For what value of 'k', the pair of equation 3x+4y+2=0 and 9x+12y+k=0 represent coincident lines.

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Statement-I : If the equation 4x^(2)+mxy-3y^(2)=0 represents a pair of real and distinct lines then m in R . Statement-II : If the difference of the slopes of the lines kx^(2)-12xy + y^(2) = 0 is 2 then k is 30 Which of the above statement is correct :

AAKASH SERIES-PAIR OF STRAIGHT LINES-PRACTICE EXERCISE

The equation 3x^(2)+10xy-8y^(2) =0 represents
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If ax^(2)+12xy+9y^(2)=0 epresents two coincident lines then a=
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The equation Kx^(2)+4xy+5y^(2)=0 represents two lines inclined at an a...
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The equation 11x^(2)-2xy+4y^(2)=0 represents
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The sum and product of the slopes of the lines 2x^(2)-xy-y^(2)=0 are
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The two lines 4x^(2)-24xy+11y^(2)=0 makes with x-axis angles such tha...
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The difference of the slopes of the lines 3x^(2)-8xy-3y^(2)=0 is
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The combined equation to a pair of straight lines passing through the ...
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If the slope of one line of the pair 8x^(2)+2hxy+y^(2)=0 is twice the ...
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If the slope of one line of the pair of ax^(2)+2hxy+by^(2)=0 is double...
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The equation of the pair of lines passing through (1,-1) and parallel ...
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The equation to the pair of st lines passing through (1, 2) and perpen...
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The equation to the pair of lines passing through the origin and perpe...
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The product of the perpendiculars from (-1, 2) to the pair of lines 2x...
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Angle between the lines x^(2)+2xysecalpha+y^(2)=0 is
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If the pair of lines given by (x^(2)+y^(2))cos^(2) theta=(x cos theta+...
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If the acute angle between the pair of lines x^(2)+4sqrt2xy+lamday^(...
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If the pair of lines given by lamda(lamda-3)x^(2)+16xy+(lamda+1)y^(2)=...
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The angle between the straight lines represented by (x^(2)+y^(2))sin^(...
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The equation of the bisector of the acute angle between the lines 4x-3...
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