Question

48. The angle between A = i^ + j^ and B = i^ - j^ is

a. 45° (b) 90° (c) -45° (d) 180°​

Answer 1

Answer:

C)180°

Explanation:

A=i^+j^ is angle between y axis and x axis ,that is 45° from x axis.B=i^-j^ is angle between negative y axis and negative x axis,that is also 45° from negative x axis.The angle form between A and B is of 180°.