96 cosπ33 cos2π33 cos4π33 cos8π33 cos16π33 is equal to

Question

96 \cos \frac{π}{33} \cos \frac{2 π}{33} \cos \frac{4 π}{33} \cos \frac{8 π}{33} \cos \frac{16 π}{33}

is equal to

3

1

4

2

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