Is cos 15* = root 3 -1/ 2 root 2 ? please explain step by step…

Question

Is cos 15* = root 3 -1/ 2 root 2 ? please explain step by step…

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Jade 3 months 2021-10-15T16:51:26+00:00 2 Answers 0 views 0

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    0
    2021-10-15T16:52:56+00:00

    Step-by-step explanation:

    i can’t understand question thanks

    0
    2021-10-15T16:53:05+00:00

    Answer:

    I can’t find so sorry sorry

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14:4+1-6*5-7*14:3+5 = ? ( )