For what values of x does the series
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(a) converge absolutely? (b) converge conditionally?
◦ (a) on the interval (-3, 0), (b) at x = -3 and x = 0
◦ (a) on the interval [-2, -1] (b) nowhere
◦ (a) on the interval (-2, -1), (b) at x = -2 and x = -1
◦ (a) on the interval [-2, -1), (b) at x = -1
◦ (a) on the interval (-2, -1), (b) for x < -2