AP EAMCET Engineering 2011 Solved Paper

Section: Mathematics

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Question : 145 of 160

Marks: +1, -0

If ax2+2hxy+by2+2gx +2fy+c=0represents a pair of parallel lines, then √

g2−ac

f2−bc

, is equal to

a
b
√
a
b
√
b
a
b
a

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