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9 April, 00:59

The sum of a number and it's reciprocal is 2.9. what is the number?

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  1. 9 April, 01:17
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    X + 1/x = 29/10

    (x^2+1) / x = 29/10

    x^2 - 2.9x + 1 = 0

    This is a quadratic equation, which can be solved using the quadratic formula.

    The final answers are x = 2.5, and x = 0.4.
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