If C is the midpoint of AB and P is any point outside AB, then
If and are vectors such that , then the angle between and is
120o
60o
90o
30o
If then the angle between and is
45o
180o
Two vector and of equal magnitude 5, originating from a point and directs respectively towards north east and north- west. Then, the magnitude of - is
3√2
2√3
2√5
5√2
If = (1,-1) and = (-2, m) are two collinear vectors, then m is equal to
0
4
2
1
The projection of is
If , , are three vectors such that = + and the angle between and is π/2, then
a2 = b2 + c2
b2 = c2 + a2
c2 = a2 + b2
2a2 - b2 = c2
If the points with position vectors are collinear, then a is equal to
-40
-20
20
40
Given, , then x, y, z are respectively.
If then the unit vector in the direction of is.
