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3 October, 12:51

If cos theta = - 4/7 what are the values of sin theta and tan theta?

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  1. 3 October, 13:04
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    cosθ = ⁻⁴/₇

    cos⁻¹ (cosθ) = cos⁻¹ (⁻⁴/₇)

    θ = 124.8499046

    sinθ = sin (124.8499046) = 0.820651806

    tanθ = tan (124.8499046) = - 1.436140661
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