The sum of a number and its reciprocal is five.

Discussion in 'Calculator Requests' started by math_celebrity, Jan 31, 2021.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    The sum of a number and its reciprocal is five.

    The phrase a number means an arbitrary variable. Let's call it x.
    The reciprocal of the number is 1/x.

    The sum means we add them together:
    x + 1/x

    The word is means an equation, so we set x + 1/x equal to 5
    x + 1/x = 5
     

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