Hi all,

I have been going through a proof, but can't seem to make sense of a step, I am sure its trivial, but I can't seem to see it!....

Let be a uniform variable on and let , find the density function of .

Find CDF first:

Now its the last step I cant seem to see; where does the 1 come from? I can see teh rest of the proof from that point on, but have problems seeing what happened in this step...

Many thanks for reading!