cube root of 81

3 answers

The cube root of 81 is denoted as \( \sqrt[3]{81} \). To approximate the value:

\[ \sqrt[3]{81} \approx 4.326 \]

Thus, the cube root of 81 is approximately 4.326.

wrong

Let's clarify the calculation.

To find the cube root of 81, we can write it as:

\[ \sqrt[3]{81} = 81^{1/3} \]

Since 81 is not a perfect cube, we can approximate it. To calculate it:

  1. Find nearby perfect cubes: The perfect cubes around 81 are:

    • \(4^3 = 64\)
    • \(5^3 = 125\)
  2. Estimate: The cube root of 81 falls between 4 and 5.

To find a more accurate value, you can use a calculator which gives:

\[ \sqrt[3]{81} \approx 4.326 \]

If you were looking for an exact method or representation for any specific purpose, please clarify, but the numerical approximation stands at around 4.326. If you meant something else, please provide more details!