Question

22. If À = 4i, B = -4j then angle of à + B with X-axis is equal to:
(a) 45°
(b) 135°
(c) 225°
(d) 315°​

Answer 1

Answer:

magnitude of both vector are equal...

so this is for sure as they lie perpendicularly in i and j direction....their resulting vector will go mid of the the two making same angle with both of them....

90/2=45°