Hey guys, I am quite new to this forum, and just encountered this seemingly simple problem but still was not successful in solving it.
then prove that,
where x,y and z are real numbers.
I tried everything I could from basic identities to substituting x=a+y and x=b+z which one of my friend suggested but no luck yet.
The 'prove that' part seems obvious but I cannot make out how to write a proof.
I would appreciate if you guys can help me out with this.