How to put sign of open / closed when find interval of increasing / decreasing function
Answers!
Hello Kaushik,
When finding intervals for increasing and decreasing,
we usually find strictly increasing and strictly decreasing.
And in strictly increasing or decreasing, we use f'(x) > 0
Thus, the interval will have open bracket. (Since there is greater than sign).
Please ask us the questions in which you have a doubt, I will be happy to help.
Comment
Answer the question...
Hello Kaushik,
When finding intervals for increasing and decreasing,
we usually find strictly increasing and strictly decreasing.
And in strictly increasing or decreasing, we use f'(x) > 0
Thus, the interval will have open bracket. (Since there is greater than sign).
Please ask us the questions in which you have a doubt, I will be happy to help.
Comment