Advertisements
Advertisements
Question
What happens to the cube of a number if the number is multiplied by 4?
Solution
Let us consider a number n. Its cube would be \[n^3\].
If n is multiplied by 4, it becomes 4n.
Let us now find the cube of 4n, we get:
\[\left( 4n \right)^3 = 4^3 \times n^3 = 64 n^3\]
Therefore, the cube of 4n is 64 times of the cube of n.
Thus, if a number is multiplied by 4, its cube is 64 times of the cube of that number.
APPEARS IN
RELATED QUESTIONS
Which of the following is perfect cube?
3087
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
7803
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
107811
What happens to the cube of a number if the number is multiplied by 5?
For of the non-perfect cubes in Q. No. 20 find the smallest number by which it must be multiplied so that the product is a perfect cube.
Write true (T) or false (F) for the following statement:
No cube can end with exactly two zeros.
Write true (T) or false (F) for the following statement:
There is no perfect cube which ends in 4.
Show that:\[\sqrt[3]{- 125 - 1000} = \sqrt[3]{- 125} \times \sqrt[3]{- 1000}\]
Difference of two perfect cubes is 189. If the cube root of the smaller of the two numbers is 3, find the cube root of the larger number.
Evaluate:
`root(3)(27) + root(3)(0.008) + root(3)(0.064)`