Equal Vectors

Q. For the two vectors to be called equal, they must have same magnitude and direction as well as same initial and final points.

1. False
2. True

Q. If |a+b| = |a-b| then (a, b) =

1. $\frac{\pi }{6}$
2. $\frac{\pi }{4}$
3. $\frac{\pi }{3}$
4. $\frac{\pi }{2}$

Q. If |a+b| = |a-b| then (a, b) =

1. $\frac{\pi }{6}$
2. $\frac{\pi }{4}$
3. $\frac{\pi }{3}$
4. $\frac{\pi }{2}$

Q. There are two vectors. The first one has initial and terminal points as A(–1, 3), B(2, 4) respectively. The second one has initial and terminal points as. C(1, -2), D(4, -1) respectively. The two vectors are not equal vectors.

1. True
2. False