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trig

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I got the following question marked wrong and I was wondering if someone could tell me why I got it wrong. The question is of the 6 trigonometric ratios, if only cosine and secant are positive, the angle is in which quadrant? I said it was in the 4th quadrant.

  • trig -

    well, cos is 1/sec so if one is + the other is +
    In quadrant 4 in fact the cos is +
    and also in quadrant 1 the cos is +
    but in quad one they are all plus.
    It can not be quad 2 or quad 3 because cos is - there.
    So I think you are correct.

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