A particle just clears a wall of height b at a distance a and strikes the ground at a distance c from the point of projection. The angle of projection is-
45°
If (2, 3, 5) is one end of a diameter of the sphere x2+ y2+ z2 − 6x − 12y − 2z + 20 = 0, then the coordinates of the other end of the diameter are
(4, 9, –3)
(4, –3, 3)
(4, 3, 5)
(4, 3, 5)
0
-1
-2
-2
C.
-2
Let A(h, k), B(1, 1) and C(2, 1) be the vertices of a right-angled triangle with AC as its hypotenuse. If the area of the triangle is 1, then the set of values which ‘k’ can take is given by
{1, 3}
{0, 2}
{–1, 3}
{–1, 3}
Let P = (−1, 0), Q = (0, 0) and R = ( 3, 3 √3) be three points. The equation of the bisector of the angle PQR
If one of the lines of my2+ (1 − m2)xy − mx2 = 0 is a bisector of the angle between the lines xy = 0, then m is
−1/2
-2
1
1