Question

Below question there is a brainly character limit, so I am typing longer​

Answer 1

Answer:

According to me it's 4

Explanation:

If correct ask for explanation

Answer 2

Answer:

option 4) 2j -I -k

Explanation:

Since (A+B) is unit vector in y direction answer needed is j only..

so components along x & z directions needs to be cancel out..

∴ - i and - k needed in answer