If the lines are perpendicular, then the value of is
A.
Given lines can be rewritten as
and
Since, lines are perpendicular.
Let Tn denote the number of triangles which can equal to be formed by using the vertices of a regular polygon of n sides. If Tn + 1 - Tn = 28, then n equals
4
5
6
8
A plane makes intercepts a, b, cat A, B, C on the coordinate axes respectively. If the centroid of the ABC is at (3, 2, 1), then the equation of the plane is
x + 2y + 3z = 9
2x - 3y - 6z = 18
2x + 3y + 6z = 18
2x + y + 6z = 18
The equation of the line passing through the point (3, 0,- 4) and perpendicular to the plane 2x - 3y + 5z - 7 = 0 is
Equation of the plane passing through t intersection of the planes x + y + z = 6 and 2x + 3y + 4z + 5 = 0 and the point (1, 1, 1)
20x + 23y + 26z - 69 = 0
31x + 45y + 49z + 52 = 0
8x + 5y + 2z - 69 = 0
4x + 5y + 6z - 7 = 0
The equation of the plane containing the line = = and = = is
8x - y + 5z - 8 = 0
8x + y - 5z - 7 = 0
x - 8y + 3z + 6 = 0
8x + y - 5z + 7 = 0