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find real A such that (3+2 i sinA)/(1-2 i sinA) is a)real b)purely imaginary

find real A such that (3+2 i sinA)/(1-2 i sinA) is 
a)real    b)purely imaginary

Grade:11

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
7 years ago
  1. You need to rationalize and equate the imaginary part to zero
  2. You need to rationalize and equate the real part to zero

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