Question

please answer this question with an explanation.. ​

Answer 1

coordinate of the points -

H = (0, a/2, a/2)

G = (a/2, 0, a/2)

H = (a/2)j + (a/2)k

G = (a/2)i + (a/2)k

GH = H - G = (a/2)j - (a/2)i = (a/2) (j - i) ...

Answer : (2)