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5 September, 08:35

Given that tan2theta=3/8, what is the value of sec theta

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  1. 5 September, 08:56
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    There's an identity

    sec^2 x = 1 + tan^2 x

    so here we have

    sec^2 theta = 1 + (3/8) ^2 = 73/64

    sec theta = sqrt 73 / 8 or 1.068 to nearest thousandth
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