In a `DeltaABC, vec(AB) =ri+j, vec(AC) =si-j`. If the area of triangle is of unit magnitude, then

In a Delta ABC,vec AB=ri+j,vec AC=si-j. If the area of triangle is of unit magnitude,then

Let G be the centroid of Delta ABC , If vec(AB) = vec a , vec(AC) = vec b, then the vec(AG), in terms of vec a and vec b, is

Let G be the centroid of Delta ABC , If vec(AB) = vec a , vec(AC) = vec b, then the vec(AG), in terms of vec a and vec b, is

If the projection of Vector vec OA on unit vector vec OB equals twice the area of Delta OAB in magnitude,then /_AOB is

If vec( AB) xx vec(AC) =2 hat(i)-4 hat(j) + 4 hat(k) , then area of Delta ABC is

Two sides of a triangle is represented by vec(a) = 3hat(j) and vec(b) = 2hat(i) - hat(k) . The area of triangle is :

Two sides of a triangle is represented by vec(a) = 3hat(j) and vec(b) = 2hat(i) - hat(k) . The area of triangle is :

If vec(b) = 3 vec(i) + 4 vec(j) and vec(a) = hat(i) - vec(j) the vector having the same magnitude as that of vec(b) and parallel to vec(a) is