Class 11 Mathematics Pair of straight lines Equation of pair of straight lines

Easy

The straight lines represented by the equation $9x^{2}-12xy+4y^{2}=0$ are

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A
coincident
B
perpendicular
C
intersect at $60^{\circ}$
D
parallel

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Class 11

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Pair of straight lines

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Equation of pair of straight lines

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