Question: 1. [2 marks] Given that WN = 62 , for any integers n and k, prove that WE + W;''' = 2 cos L733"

1. [2 marks] Given that WN = 62\"\" , for any

integers n and k, prove that WE\" + W;'\"'"\"' = 2 cos

1. [2 marks] Given that WN = 62\"\" , for any integers n and k, prove that WE\" + W;'\"'"\"' = 2 cos L733&quot

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