Hi, hoping that someone here can help shed some light on this for me.
You are given that .
a) - this was easy enough, could do this.
Here's how far I got:
Using part a
I have no idea what to do with the last, part, any help is greatly appreciated
Thanks in advance
I worked out to be which simplifies to be ?
Putting this back into the earlier equation I get:
Which simplifies again to be .
Hmm, I seem to have 1. Proved the obvious that , and 2. Made a mistake somewhere along the line.
Just for anyone reading through this at any point, here's the answer I have finally worked out!
can be written as
Which gives us
We know from the given substitution that , therefore
We then get
Putting this last bit back into the equation, you have proved that
Took me 2 days but have finally found a way to do it
*runs off in joy*