Consider the following statements: 1. Line joining (1, 2, 5); (4, 3, 2) is parallel to the line joining (5, 1, ), (8, 2, ) 2. Three concurrent lines with  are Coplanar, if 3. The plane  and the line  are parallel Which of these is/are correct? a) (1)and (2) b) (2) and (3) c) (3) and (1) d) (1), (2) and (3)

Question ID - 56168 | SaraNextGen Top Answer Consider the following statements: 1. Line joining (1, 2, 5); (4, 3, 2) is parallel to the line joining (5, 1, ), (8, 2, ) 2. Three concurrent lines with  are Coplanar, if 3. The plane  and the line  are parallel Which of these is/are correct? a) (1)and (2) b) (2) and (3) c) (3) and (1) d) (1), (2) and (3)

1 Answer
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Answer Key / Explanation : (d`) -

(d)

(1) Direction ratio of the joining the points (1, 2, 5) and (4, 3, 2) is (3, 1, ) and direction ratios of the joining the points (5, 1, 1) and (8, 2, ) is (3, 1, 3)

These are parallel

(2) It is true

(3) Direction ratios of the plane  are (1, , 1) and direction ratios of the line  are (1, 2, 3). If they are parallel, then

1(1)

127 votes

127