What is , what is , on what interval are they defined? What is ?
can someone help me??!
I have this problem..
if is a nonnegative and decreasing function and
is a positive and nondecreasing
so..
for all ??!
I tried to prove this problem but at this step
I don't know how to get the rest of proof from this step..
can someone help me to get the rest of proof??
thanks for any help