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asked ago in Mathematics by (18.9k points)
edited ago by

Let A = {θ ∈ (-π/2,π): 3 + 2 i sin θ/1 - 2 i sin θ is purely imaginary }. Then the sum  of the elements in A is

(1)  2π/3

(2)  5π/6

(3)  π

(4)  3π/4

1 Answer

+1 vote
answered ago by (21.7k points)
selected ago by
Best answer

Correct option  (1)  2π/3


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