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Asked by | 31 Aug, 2008, 06:50: PM Expert Answer

multiply both numerator and denominator by conjugate of 1- 31/2i which is 1+31/2i

we will get = (1-31/2) / 4 +(1+31/2i) / 4

arguement = tan-1 ( (1+31/2) / (1-31/2) )

using formula tan(A+B) = (tanA+tanB) / (1-tanA tanB)

if we put A=45o and B = 60o then we will get the same expression as above

means arguement = 105o

Answered by | 06 Sep, 2008, 06:44: PM
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