Find the equation of the cubic curve whose asymptotes are x+a=0,y−a=0,x+y+a=0 and which touches the x axis at origin and passes through the point (−2a,−2a)?
A
xy(x+y)+a(y2+xy−x2)−10a2y=0
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B
xy(x−y)+a(y2+xy−x2)+10a2y=0
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C
xy(x+y)−a(y2+xy−x2)+10a2y=0
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D
None of these
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Solution
The correct option is Axy(x+y)+a(y2+xy−x2)−10a2y=0 So to find equation of cubic curve whose asymptotes are x+a=0,y−a=0,x+y+a=0
And which toches the x-axis at the origun nd passes through the point (−2a,−2a)
Put the given equation in options
For x+a=0,y−a=0,x+y+a=0 and
At point (0,0)and(−2a,−2a) satisfy equation (A)
Cubic equation will be xy(x+y)+a(y2+xy−x2)−10a2y=0