The lines represented by x^2+2 xy+2y^2=0 and the lines represented by (1+ )x^2-8xy+y^2=0 are equally inclined then is

JEE Advanced Mathematics question

The lines represented by and the lines represented by are equally inclined then is

Answer: (C)

Two pairs are equally inclined to each other when they have the same angle bisectors. First pair: , i.e. . Second pair: , i.e.

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Question ID VK-108860