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29 August, 20:44

If cos theta = - 2/5 and tan theta > 0, what is the value of sin theta?

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  1. 29 August, 20:55
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    Because tan theta > 0 and cos theta is negative this angle is in the third quadrant.

    angle whose cos is 2/5 is 66.42 degrees

    The required angle is 180 + 66.42 = 246.42 degrees answer.
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