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    Cube Root of 1.2

    Cube Root Calculator
    Cube root of

    What is the cube root of 1.2?

    Answer

    ∛1.2 ≈
    1.0627

    Real cube root: the only number whose cube is 1.2.

    ≈ — rounded to 4 decimal places. 1.2 is not the cube of a rational number, so ∛1.2 is irrational: its decimal expansion never ends and never repeats.

    Between cubes
    1³ = 1 < 1.2 < 8 = 2³, so 1 < ∛1.2 < 2 and ∛1.2 ≈ 1.0627

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    https://calculat.io/en/number/cube-root/1.2Copy
    <a href="https://calculat.io/en/number/cube-root/1.2">Cube Root of 1.2 (∛1.2): Exact Value and Decimal</a>Copy
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    Cube Root of 1.2 (∛1.2): Exact Value and Decimal. ∛1.2 ≈ 1.0627. 1.2 is not the cube of a decimal: 1³ = 1 < 1.2 < 8 = 2³.
    https://calculat.io/en/number/cube-root/1.2/generated.jpgCopy

    Cube roots of nearby values

    N∛N
    11
    1.1≈ 1.0323
    1.12≈ 1.0385
    1.2≈ 1.0627
    1.21≈ 1.0656
    1.25≈ 1.0772
    5/4∛10/2 ≈ 1.0772
    Recalculate with different values ↑

    FAQ

    What is the cube root of 1.2?

    ∛1.2 ≈ 1.0627

    How to find ∛1.2 without a calculator?

    Bracket it between cubes: 1³ = 1 < 1.2 < 8 = 2³, so ∛1.2 lies between 1 and 2. Narrowing the bracket digit by digit gives ∛1.2 ≈ 1.0627; 1.2 is not the cube of a decimal, so the root never ends.

    Is ∛1.2 a rational number?

    No: 1.2 is not the cube of a rational number, and the cube root of a fraction p/q in lowest terms is rational only when p and q are both cubes. So ∛1.2 is irrational; its decimal never ends and never repeats: ∛1.2 ≈ 1.0627.

    See Also