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1 April, 02:24

Cos90sin0-sin0cos90=?

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Answers (2)
  1. 1 April, 02:26
    0
    90 = 0

    since, 0 = 0

    (0) (0) - (0) (0) = 0

    Answer: 0
  2. 1 April, 02:49
    0
    Use the Unit Circle (or a calculator) to find each one, then solve.

    cos 90 = 0

    sin 0 = 0

    (0) (0) - (0) (0) = 0

    Answer: 0
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