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Treating the utility matrix as boolean ( buy or not buy ) , compute the Cosine distance between zephyros and dadvador. Please answer to three

Treating the utility matrix as boolean

(

buy or not buy

),

compute the Cosine distance between zephyros and dadvador. Please answer to three decimal places.

Note: It is possible to solve this question mathematically, but it may be easier to solve this question programmatically.

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