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A family of curve S is given by S -= x^(2) +2xy +y^(2)-4x(1-lambda) - 4y (1+lambda) +4, then S = 0 represents |
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Answer» pair of straight LINE `AA lambda in R` `rArr (x+y-2)^(2) = 4 lambda (y-x)` If `lambda=0`, it represents pair of straight line otherwise parabola. |
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