Hey! I need some help to prove the following identity:
I'm supposed to use the formula
So, in this case I get the following:
and
Now
So
And I'm stuck... What do I do next?
Any help will be appreciated.
Hey! I need some help to prove the following identity:
I'm supposed to use the formula
So, in this case I get the following:
and
Now
So
And I'm stuck... What do I do next?
Any help will be appreciated.