Question: f x sinxx i 8 points Find the intervals where f is increasing or decreasing ii 8 points Show that cosr 1 x3 6 2

f x sinxx i 8 points Find the intervals where f is increasing or decreasing ii 8 points Show that cosr 1 x3 6 2 24 for every real number x A solution with a graph and without any mathematical arguments will not get any credits

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