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9 April, 01:02

If cosx is approximately 0.9511, what is the measurement of x to the nearest degree? Approximately, what is the sine of the angle that is complementary to x?

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Answers (2)
  1. 9 April, 01:30
    0
    Answer: 18 degrees and 0.9511

    Step-by-step explanation:

    18°; 0.9511

    Cos-1 (0.9511) = 18°

    The complement of 18° is 72°. The sine of 72° is the cos of 18°, which is 0.9511.
  2. 9 April, 03:40
    0
    Using the calculator angle whose cos is 0.9511 is 18 degrees

    Sine of the complementary angle = 0.9511 also

    Step-by-step explanation:

    The sine of the complementary angle (which is 90-18 = 72 degrees) is same value 0.9511
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