Question: In Problems below, (a) find the critical values of the function, and (b) make a sign diagram and determine the relative maxima and minima. 1.

In Problems below,

(a) find the critical values of the function, and

(b) make a sign diagram and determine the relative maxima and minima.

1. y = 2x3 - 12x2 + 6

2. y = x3 - 3x2 + 6x +1

3. y = 2x5 + 5x4 - 11

4. y = 15x3 + x5 - 7

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