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Co - ordinate Geometry Pair of Lines

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If the equation ax² + by² + cx + cy = 0 represents a pair of straight lines, then

A. a(b + c) = 0

B. b(c + a) = 0

C. c(a + b) = 0

D. a + b + c = 0

E. None of the above

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Correct choice: C

Explanation:

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Eamcet Mathematics Co - ordinate Geometry Pair of Lines

Eamcet Mathematics
Co - ordinate Geometry Pair of Lines