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11 January, 16:07

Let theta be an angle in quadrant IV such that sin theta = - 5/13 Find the exact values of sec theta and tan theta

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  1. 11 January, 16:28
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    13^2-5^2=12^2

    Quad 4: sec is positive, tan is negative

    sec=1/cos

    cos=12/13

    sec=13/12

    tan=sin/cos

    tan=-5/12
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