If ar=(cos2rπ+is∈2rπ)1/9 , then prove that ∣a1a2a3a4a5a6a7a8a9∣=0.

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If {a}_{{r}}={({{{2}}}{r}+{i}{s}{2}{r})}^{{{1}/{9}}} , then pr

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If $a_{r} = (cos 2 r π + i s \in 2 r π)^{1 / 9}$ , then prove that $∣ a_{1} a_{2} a_{3} a_{4} a_{5} a_{6} a_{7} a_{8} a_{9} ∣ = 0 .$

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Sebastian Discussed

a_{r} = (cos 2 r π + i s \in 2 r π)^{1 / 9}

, then prove that

∣ a_{1} a_{2} a_{3} a_{4} a_{5} a_{6} a_{7} a_{8} a_{9} ∣ = 0 .

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a_{r} = (cos 2 r π + i s \in 2 r π)^{1 / 9}

, then prove that

∣ a_{1} a_{2} a_{3} a_{4} a_{5} a_{6} a_{7} a_{8} a_{9} ∣ = 0 .