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http://functions.wolfram.com/01.09.21.0022.01
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Integrate[E^(b z) Cot[a z], z] == (-(1/((2 a - I b) b)))
((2 I a + b) E^(b z) Hypergeometric2F1[-((I b)/(2 a)), 1, 1 - (I b)/(2 a),
E^(2 I a z)] + b E^((2 I a + b) z) Hypergeometric2F1[1 - (I b)/(2 a), 1,
2 - (I b)/(2 a), E^(2 I a z)])
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Date Added to functions.wolfram.com (modification date)
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){kind=small}
