Question

the cube root of rational number x/y is​

Answer 1

Answer:

√x/√y

Step-by-step explanation:

example : 125

so the cube root is used to find as ,

split 125 by taking HCF

it comes as 5*5*5* = 125

Answer 2

Answer:

A ‘cube root’ is another name for the third root:

A number, a, is a cube root of another number, n, if:

a³ = n

As with all roots of rational numbers, its cube root will be rational if both integers which constitute the numerator and the denominator of the fraction to which the rational number is equal, have integer cube roots.

Example:

³√(64 / 343) = ³√64 / ³√343 = 4/7

In all other cases, the cube roots of rational numbers will be irrational.

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