AP EAMCET Engineering 23 Sep 2020 Shift 1 Paper

Section: Mathematics

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Question : 55 of 160

Marks: +1, -0

If lx2+3xy−2y2−5x+5y+k = 0 represents a pair of perpendicular lines, then

k = ±3, l = ±2
k = −22, l = −12
k = −3, l = 2
k = −16, l = 9

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