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baby84
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cos (5Θ1) cos (5Θ2) cos (5Θ3) cos (5Θ4) cos (5Θ5) = 0
cos (7Θ1) cos (7Θ2) cos (7Θ3) cos (7Θ4) cos (7Θ5) = 0
cos (11Θ1) cos (11Θ2) cos (11Θ3) cos (11Θ4) cos (11Θ5) = 0
cos (13Θ1) cos (13Θ2) cos (13Θ3) cos (13Θ4) cos (13Θ5) = 0
cos cos (Θ1) cos (Θ2) (Θ3) cos (Θ4) cos (Θ5) = 5 × 0,8 = 4
cos (7Θ1) cos (7Θ2) cos (7Θ3) cos (7Θ4) cos (7Θ5) = 0
cos (11Θ1) cos (11Θ2) cos (11Θ3) cos (11Θ4) cos (11Θ5) = 0
cos (13Θ1) cos (13Θ2) cos (13Θ3) cos (13Θ4) cos (13Θ5) = 0
cos cos (Θ1) cos (Θ2) (Θ3) cos (Θ4) cos (Θ5) = 5 × 0,8 = 4