A function is said to be increasing on if for every where then
I read in a book that function is increasing on if on the interval (but should not become zero on any sub-interval of
This is given in standard texts
So what exactly does strictly increasing mean i.e when is a function said to be strictly increasing on the interval .
The definition of strictly increasing was given as follows:
The function is strictly increasing on if on the interval
A confusion gets created with regard to use of sign and sign
So what exactly is the definition of increasing function and what exactly is the definition of strictly increasing function