Pro\e thatA + V' _ arctan a + arctan \' = arctan ' tor aa' t^ 1 I - AVprovided the value
Chapter 8, Problem 47(choose chapter or problem)
Pro\e thatA + V' _ arctan a + arctan \' = arctan ' tor aa' t^ 1 I - AVprovided the value of the left side of the equation is between - 77/2 and 7r/2.
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