If the vectors `hati-hatj,hatj+hatk and a` form a triangle, then a may be

If the vectors hati-hatj, hatj+hatk and veca form a triangle then veca may be (A) -hati-hatk (B) hati-2hatj-hatk (C) 2hati+hatj+hatjk (D) hati+hatk

If the vectors hati-hatj, hatj+hatk and veca form a triangle then veca may be (A) -hati-hatk (B) hati-2hatj-hatk (C) 2hati+hatj+hatjk (D) hati+hatk

If the vectors (hati+ hatj + hatk) and 3 hati from two sides of a triangle, then area of triangle is :

A plane is parallel to the vectors hati+hatj+hatk and 2hatk and another plane is parallel to the vectors hati+hatj and hati-hatk . The acute angle between the line of intersection of the two planes and the vector hati-hatj+hatk is

If the vectors (hati+hatj+hatk) and (3 hati+ 2 hatj) form two sides of a triangle, then area of the triangle is :

A vector coplanar with vectors hati + hatj and hat j + hatk and parallel to the vector 2hati -2 hatj - 4 hatk , is

Show that the vectors hati-hatj-hatk,2hati+3hatj+hatk and 7hati+3hatj-4hatk are coplanar.

If the vectors 6hati-2hatj+3hatkk,2hati+3hatj-6hatk and 3hati+6hatj-2hatk form a triangle, then it is

The vector (s) equally inclined to the vectors hati-hatj+hatk and hati+hatj-hatk in the plane containing them is (are_ (A) (hati+hatj+hatk)/sqrt(3) (B) hati (C) hati+hatk (D) hati-hatk

Show that the vectors hati-3hatj+2hatk,2hati-4hatj-hatk and 3hati+2hatj-hatk and linearly independent.