There might be occasions when you need to round the result of a cube root calculation down to a specific number of decimal places. Hence, the difference between the cube root of 64 and the cube root of 8. Find if Cube Root of 64 Minus Cube Root of 8 is a Rational Number The value of cube root of 64 and 8 is 4 and 2 respectively i.e. We just confirmed that 8 is a rational number then, because we know it is a perfect cube number. Take the cube root on both sides of the equation: 3 -64 3 -4 3 -4 Hence, the cube root of -64 is -4.

If ‘×’ is an integer, its cube is denoted by ‘ x³ ‘. So, if a number is a perfect cube, then it's a rational number, but if it is not a perfect cube then it is an irrational number. Square Root 1 to 30 1 to 30 Cube of a Number When we multiply an integer itself three times, the value we get is the cube of that integer. Remember that a rational number can be written as a fraction, while irrational numbers can't. This is a commonly asked question and the answer to whether the cube root of 8 is rational or irrational is always the same as if it is a perfect cube.

Is the cube root of 8 a rational or irrational number? We have a list of perfect cubes article which covers the first 500 perfect cube numbers for you. These are important for a lot of different math functions and can be used in simpler settings like carpenty and room design all the way through to more advanced calculations in physics and astronomy.įor the number 8 we have already calculated the answer of 2 using a scientific calculator and since this is a whole number, we also know that 8 is a perfect cube number. Read all the mathematical functions available in Python and understand how to implement them in your program by using the tutorial of Python Mathematical Methods Examples.Whenever the cube root of a given number is a whole number without any fractional or decimal part, we call this a perfect cube. Output: The cube root of the given number = -3.0 To calculate the cube root of a negative number in Python, first, use the abs() function, and then use the simple math equation. We cannot find the cube root of negative numbers using the method described above. In the case of square root, we simply used the root symbol, such as ‘√’, which is also known as a radical. A number’s cube root is a value that, when multiplied by itself three times, yields the original value.

Given a number and the task is to calculate the cube root of a given number in Python.Ī cube root is a number that, when cubed, yields a given number. In the previous article, we have discussed Python Program for isfinite() Function

Cube root