Here is the question:
By expanding out , verify the formula:
Ok, now I believe that and . Also, if you expand out the first formula you get
but from here I am stuck. Am I onto something here or am I going at this all wrong? thanks.
Here is the question:
By expanding out , verify the formula:
Ok, now I believe that and . Also, if you expand out the first formula you get
but from here I am stuck. Am I onto something here or am I going at this all wrong? thanks.