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-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 vector parallel to the line of intersection of the planes vecr.(3hati-hatj+hatk) = 1 and vecr.(hati+4hatj-2hatk)=2 is :

A vector coplanar with vectores hati + hatj and hatj + hatk and parallel to the vector 2 hati - 2 hatj - 4 hatk is

Determine the sine of the angle between the vectors 3 hati +hatj +2hatk and 2hati - 2hatj +4hatk .