Question: I need help with this 3. Use a Sign chart for f to determine the intervals on which each function f is concave up or

I need help with this

3. Use a Sign chart for f\" to determine the intervals on which each function f is concave up or concave down1 and identify the locations of any inection points. (a) it?) = (I 2V (b) f(:r) = 1:4 21:3 5
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