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Co - ordinate Geometry Pair of Lines

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If (a + 3b)(3a + b) = 4h² , then the angle between the lines represented by ax² + 2hxy +by² = 0 is

A. 30^o

B. 45^o

C. 60^o

D. tan^-1 1/2

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