1.

If ar=(cos2rπ+isin2rπ)19, then the value of ∣∣∣∣a1a2a3a4a5a6a7a8a9∣∣∣∣ is:

Answer»

If ar=(cos2rπ+isin2rπ)19, then the value of
a1a2a3a4a5a6a7a8a9
is:



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