The vector that must be added to the vector `hati-3hatj+2hatk` and `3hati+6hatj+7hatk` so that the
Channel: Doubtnut
Date: 2020-07-26

The vector that must be added to the vector `hati-3hatj+2hatk` and `3hati+6hatj+7hatk` so that the resultant vector is a unit vector along the y-axis is