All India Engineering / Architecture Entrance Examination (AIEEE)

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AIEEE 2008 MATHEMATICS

Q. 4. The line passing through the points (5, 1, a) and (3, b, 1) crosses the yz-plane at the point

1. a = 6, b = 4
2. a = 8, b = 2
3. a = 2, b = 8
4. a = 4, b = 6

Sol. Equation of line through (5, 1, a) and (3, b, 1) is

Q. 5. If the straight lines intersect at a point, then the integer k is equal to

1. 2
2. 2
3. 5
4. 5

Sol.As the given lines intersect