упростите выражение синус 5acos 4a-cos 5asin 4a+sina​

Question

упростите выражение синус 5acos 4a-cos 5asin 4a+sina​

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Jade 8 месяцев 2021-09-25T04:05:01+00:00 2 Answers 0 views 0

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  1. Amelia
    0
    2021-09-25T04:06:28+00:00
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    sin5acos4a-cos5asin4a+sina​

    sin(5a-4a)+sina

    sina+sina

    2sina

  2. Piper
    0
    2021-09-25T04:06:37+00:00
    Reply

    Sin5\alpha Cos4\alpha-Cos5\alpha Sin4\alpha+Sin\alpha=Sin(5\alpha-4\alpha)+Sin\alpha =\\\\=Sin\alpha+Sin\alpha=\boxed{2Sin\alpha}

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