If vec(A) = (1)/(sqrt2) cos theta hat(i) + (1)/(sqrt2) sin theta hat(j), what will be the unit vector perpendicular to vec(A)

If vec(A) = (1)/(sqrt2) cos theta hat(i) + (1)/(sqrt2) sin theta hat(j

1.	If vec(A) = (1)/(sqrt2) cos theta hat(i) + (1)/(sqrt2) sin theta hat(j), what will be the unit vector perpendicular to vec(A)
Answer» `COS theta i + sin theta J` `-cos theta i + sin theta j` `(cos theta i+ sin theta j)/(SQRT2)` `sin theta i- cos theta j` ANSWER :D