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Phrases Pair Of Straight Lines PYQ



For what values of λ does the equation 6x2xy+λy2=0 represents two perpendicular lines and two lines inclined at an angle of π/4.





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The slope of two-lines  differ by





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If θ is acute angle between the pair of lines x27xy+12y2=0, then 2cosθ+3sinθ4sinθ+5cosθ=





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If x2 + 3xy + 2y2 – x – 4y – 6 = 0 represents a pair of straight lines, their point of intersection is





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