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Math Help - how to find cube of1.015 using shortcuts and without calci

  1. #1
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    how to find cube of1.015 using shortcuts and without calci

    how to find cube of1.015 using shortcuts and without calci
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  2. #2
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    Hello, Supreeth!

    How to find cube of1.015 using shortcuts and without calci
    I'd do it like this . . .

    \left(1 + \frac{15}{10^3}\right)^3 \;=\;1^3 + 3(1^2)\left(\frac{15}{10^3}\right) + 3(1)\left(\frac{15}{10^3}\right)^2 + \left(\frac{15}{10^3}\right)^3

    . . . . . . . . = \;1 + \frac{45}{10^3} + \frac{675}{10^6} + \frac{3375}{10^9}

    . . . . . . . . = \;1 + 0.045 + 0.000675 + 0.000003375

    . . . . . . . . = \;1.045678375

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  3. #3
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    oh thank u. tat was really helpful

    thx.. its really is a short easier method
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  4. #4
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    Talking

    There are other methods, too, if you're interested.
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  5. #5
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    i asked to kno bout findin cubes, not cube roots

    i asked for cubes not cube roots
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  6. #6
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    Red face

    Sorry; I misread your post.
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