11. T (z) = (az + b) / (cz + d) (ad - bc ≠ 0)
Show the following. (Please explain by using theorem.)
(a) lim T (z) = ∞ if c = 0
(b) lim T (z) = a / c and lim T (z) = ∞ if c ≠ 0.
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