What value of makes this equation true? sin(30) = cos()

Question

What value of makes this equation true? sin(30) = cos()

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Nguyệt Ánh 4 years 2021-08-31T13:26:59+00:00 2 Answers 54 views 0

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  1. Jezebel
    0
    2021-08-31T13:28:52+00:00
    Reply

    Answer:

    cos60°

    Step-by-step explanation:

    Using the cofunction identity

    cos(90 – x) = sinx , then

    sin30° = cos(90 – 30)° = cos60°

  2. ngockhue
    0
    2021-08-31T13:28:56+00:00
    Reply

    sin(30)= -0.952…
    cos(60) = -0.952…
    sin(30) = cos(60)

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