# Question: identify the four distinct directions of the 101 family in...

###### Question details

Identify the four distinct directions of the 101 family in the tetragonal unit cell and draw them on a unit cell. Note that the negative of a direction is not a distinct direction, for example (111) and (-1- 1 -1) are not distinct directions. tetragonal unit cell a=b≠c.

Please provide a detail explanation as I am confused about this problem. Thank you!