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[" 6.If "|z-3i|=3" ,(where "i=sqrt(-1)" ...

[" 6.If "|z-3i|=3" ,(where "i=sqrt(-1)" ) and arg "z in(0,pi/2)],[" then "cot(sin theta(z))-6/z" is equal to "],[[" (ii) "0," (b) "-i],[" (c) "i," (d) none of these "]]

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