Match the following columns.
A | The centroid of the triangle formed by (2, 3, - 1), (5, 6, 3), (2, -3 ,1) is | p | (2, 2, 2) |
B | The circumcentre of the triangle formed by (1,2, 3) (2, 3, 1), (3, 1, 2) is | q | (3, 1, 4) |
C | The orthocentre of the triangle formed by (2, 1, 5), (3, 2, 3), (4, 0, 4) is | r | (1, 1, 0) |
D | The incentre of the triangle formed by (0, 0, 0), (3, 0, 0), (4, 0, 4) is | s | (3, 2, 1) |
E | The incentre of the triangle formed by (0, 0, 0), (3, 0, 0), (4, 0, 4) is | t | (0, 0, 0) |
A. A B C D | (i) s p q r |
B. A B C D | (ii) p q r s |
C. A B C D | (iii) s r q r |
D. A B C D | (iv) s p t r |
A.
If a, b, c are distinct and the roots of (b - c)x2 + (c - a)x + (a - b) = 0 are equal, then a, b and c are in
anthmet1c progression
geometnc progression
harmonic progression
arithmetico-geometnc progression
If the roots of x3 - kx2 + 14x - 8 = 0 are in geometric progression, then k is equal to
- 3
7
4
0