Question #d73e5
1 Answer
Feb 3, 2018
See explanation.
Explanation:
Well, let's see what we can do starting from the left-hand-side.
I see I can transform the
Now, we see we're getting closer since we already have the
Let's now transform
We recall the identity
This becomes
Simplifying, we have:
and cancelling out the
Q.E.D.