Advertisements
Advertisements
Question
Cube roots of 8 are +2 and –2.
Options
True
False
Advertisements
Solution
This statement is False.
Explanation:
(2)3 = 2 × 2 × 2 = 8
∴ `root(3)(8) = 2`
But (–2)3 = (–2) × (–2) × (–2) = –8 ≠ 8
∴ `root(3)(8) ≠ -2`
APPEARS IN
RELATED QUESTIONS
Which of the following is perfect cube?
456533
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
35721
By taking three different values of n verify the truth of the following statement:
If n is even , then n3 is also even.
Which of the following number is cube of negative integer - 64 .
Multiply 210125 by the smallest number so that the product is a perfect cube. Also, find out the cube root of the product.
What is the smallest number by which 8192 must be divided so that quotient is a perfect cube? Also, find the cube root of the quotient so obtained.
Find the cube root of the following integer −753571.
Show that: \[\sqrt[3]{- 125 \times 216} = \sqrt[3]{- 125} \times \sqrt[3]{216}\]
Find the cube-root of 1728.
The cube root of a number x is denoted by ______.
