Vector a is shown in the diagram below
Vector b is parallel to a in the same direction twice as long
Work out b as a column vector
![Vector a is shown in the diagram below Vector b is parallel to a in the same direction twice as long Work out b as a column vector class=](https://us-static.z-dn.net/files/d07/6c50aef055b6b7f3883be018c50d079a.png)