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All India Engineering / Architecture Entrance Examination (AIEEE) CBSE Guess > AIEEE > AIEEE Papers > 2010 > Mathematics AIEEE 2010 Mathematics Q. 7. If two tangents drawn from a point P to the parabola are at right angles, then the locus of p is.
Sol. Locus of point P is directrix of parabola i.e., x=-1 Answer: (2) Q. 8. If the vectors and are mutually orthogonal ,
Sol : Answer (c) Q. 9. Consider the following relations: R = {(x, y) | x, y are real numbers and x=wy for some rational number w };
Sol : R is not equivalence but Answer : (2)
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