Question

72
5. Let Ā=iAcose+ſAsine, be any vector. Another
vector B which is normal to A is:
(1) iBcose +ĪBsine (2) îB sine+ſBcos e
(3) Bsino - Bcose (4) ¡A cose – ÎA sine​

Answer 1

Answer:

option 3

Explanation:

See the attached picture.