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28 April, 19:30

Use the steps to determine the exact value of

sin (-135) °.

Identify the reference angle, θ.

θ =

°

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Answers (1)
  1. 28 April, 19:59
    0
    To solve for sin (-135), the reference angle will be obtained as follow:

    sin (-135)

    =-sin (135)

    =-sin (180-135)

    =-sin 45

    hence

    the reference angle θ=45°
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