following these instructions
Find the critical numbers for f and the open intervals on which f is increasing (decreasing)
For the first question, your answer should be a comma-separated list of x values or the word "none". For the other two, your answer should either be a single interval, such as (0,1), a comma-separated list of intervals, such as (-inf, 2), (3,4), or the word "none".
answeres needed for each
|1.||The critical numbers for f are|
|2.||f is increasing on the intervals|
|3.||f is decreasing on the intervals|
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