A non zero vector `veca` is parallel to the line of intersection of the plane determined by the vectors `hati,hati+hatj`and the plane determined by the vectors `hati-hatj , hati + hatk`. The angle between `veca` and `hati-2hatj + 2hatk` can be

A non vector veca is parallel to the line of intersection of the plane determined by the vectors hati,hati+hatj and thepane determined by the vectors hati-hatj,hati+hatk then angle between veca and hati-2hatj+2hatk is = (A) pi/2 (B) pi/3 (C) pi/6 (D) pi/4

A non vector veca is parallel to the line of intersection of the plane determined by the vectors hati,hati+hatj and thepane determined by the vectors hati-hatj,hati+hatk then angle between veca and hati-2hatj+2hatk is = (A) pi/2 (B) pi/3 (C) pi/6 (D) pi/4

A non-zero vector bara is parallel to the line of intersection of the plane P_1 determined by hati+hatj and hati-2hatj and plane P_2 determined by vector 2hati+hatj and 3hati+2hatk then angle between bara and vector hati-2hatj+2hatk is

The acute angle that the vector 2hati-2hatj+2hatk makes with the plane determined by the vectors 2hati+3hatj-hatk and hati-hatj+2hatk is

The acute angle that the vector 2hati-2hatj+hatk makes with the plane determined by the vectors 2hati+3hatj-hatk and hati-hatj+2hatk is

The vector that is parallel to the vector 2hati-2hatj-4hatk and coplanar with the vectors hati+hatj and hatj+hatk is

Write the scalar projection of the vector veca = 2hati -hatj + hatk on the vector vecb = hati + 2hatj + 2hatk .