The angle between Ai +j and B = i-j is

A non-zero vector vec a is parallel to the line of intersection of the planes determined by the vectors i, i+j and the plane determined by the vectors i-j, j+k. The angle between vec a and i-2j+2k is

The angle between 3i+4j" and "2j-5k is

A=4i+4j-4k and B=3i+j4k , then angle between vectors A and B is

A=4i+4j-4k and B=3i+j +4k , then angle between vectors A and B is

The angle between A = hat i + hat j and B = hat i - hat j is :

If theta is the angle between vec a = 2i-j+k and vec b = i+2j+k , then cos theta=

Assertion: Angle between hat(i)+hat(j) and hat(i) is 45^(@) . Reason: hat(i)+hat(j) is equally inclined to both hat(i) and hat(j) and the angle between hat(i) and hat(j) is 90^(@) .

The angle between the vectors i+j and j+k is