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Mathematics, 24.06.2019 07:20 payshencec21

1. there are 7 seventh roots of 1. find three of the non-obvious ones find the angles a in radians. do not write a = 0, 360 degrees or any coterminal angle to o those are obvious ) two roots are z = cos a + i sin a where a= or a= or a= can someone me for this question i kinda confused pls explain to me step by step?

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