Question

(b) If à x B = Č, then :
(1) Č is perpendicular to à only.
(ii) Č is parallel to
(iii) Č is perpendicular to both X and B
(iv) Čis parallel to both X and B​

Answer 1

C is perpendicular to both X and Y...according to screw law...

=> please mark me if you are satisfied with my answer...