In what intervals is the function increasing?
It has a single inflection point at (−1, 0).
We find the critical point by finding g′(x) and equating it to 0
Therefore g′(x) = 0 = (-1 + 2t3)/t2
t = (1/2)1/3
We can see that the function is increasing for
t > (1/2)1/3
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