If i z^3+z^2-z+i=0 , where i=sqrt(-1) , ...

If `i z^3+z^2-z+i=0` , where `i=sqrt(-1)` , then `|z|` is equal to 1 (b) `1/2` (c) `1/4` (d) None of these

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The correct Answer is:

` rArr |z| = 1`

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