1.

If vec(a)= 2vec(i)-3 vec(j) + vec(k). vec(b)= vec(i) + 4vec(j)- 2vec(k), then find (vec(a) + vec(b)) xx (vec(a) - vec(b)).

Answer»


ANSWER :`-2(2vec(i) + 5vec(J) + 11vec(K))`


Discussion

No Comment Found