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6 July, 15:09

Evaluate and simplify sin (-15º).

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  1. 6 July, 15:35
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    Note:

    sin (-θ) = - sinθ

    sin (-15°) = - sin15° Use a calculator

    sin (-15°) = - sin15° = - 0.2588

    sin (-15°) = - 0.2588
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