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13 January, 12:03

Which of the following expressions is equal to sin⁡⁡ (-150°) ?

sin (30°)

-sin (-30°)

-sin (30°)

sin (150°)

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Answers (1)
  1. 13 January, 16:03
    0
    The answer is - sin (30 °)

    You can use calculator if you want to verify or to compare values if equal.
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