Hint: For each of the following intervals, tell whether is increasing or decreasing. : ? increasing decreasing : ? increasing decreasing ? increasing decreasing The critical number is ? a relative maximum a relative minimum neither max nor min and the critical number is ? a relative maximum a relative minimum neither max nor min There are two numbers where either or is undefined. Then and . Finally for each of the following intervals, tell whether is concave up or concave down. : ? concave up concave down ? concave up concave down ? concave up concave down
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