Maths

What is the answer of x to the power of -0.5 equal(=)

3 個解答

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  • 1 十年 前
    最佳解答

    the above explanation is right, but you will need to plot a graph to answer the question as it is a function with x and y as variables.

    steps:

    the equation is y = 1/ root x, when x = 0.1, y = 3.1622

    x = 0, y is undefined

    x = 1, y = 1

    x = 2, y = 0.7071

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    .

    .

    when x is very large, y is approaching to zero.

    So plot it out, mind you that is a continuous curve.

    if you still don't understand, have a look at the chapter about functions in Form 4 Maths book.

    (Functions is a very important concept in modern mathematics!)

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  • 1 十年 前

    = 1 / (square root of x)

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  • ?
    Lv 5
    1 十年 前

    1/(root x)

    negative means one over

    1/2 means take square root

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