Advertisements
Advertisements
Question
\[\sqrt[3]{480} = \sqrt[3]{3} \times 2 \times \sqrt[3]{. . .}\]
Advertisements
Solution
20
∵ \[\sqrt[3]{480} = \sqrt[3]{\left\{ 2 \times 2 \times 2 \right\} \times 2 \times 2 \times 3 \times 5} = 2 \times \sqrt[3]{3} \times \sqrt[3]{5 \times 2 \times 2} = \sqrt[3]{3} \times 2 \times \sqrt[3]{20}\]
APPEARS IN
RELATED QUESTIONS
Find the cube root of the following number by the prime factorisation method.
15625
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 792 .
Using the method of successive subtraction examine whether or not the following numbers is perfect cube 1331 .
\[\sqrt[3]{125 \times 27} = 3 \times . . .\]
\[\sqrt[3]{} . . . = \sqrt[3]{7} \times \sqrt[3]{8}\]
Evaluate:
Evaluate:
Making use of the cube root table, find the cube root
34.2 .
Which is the smallest number that must be multiplied to 77175 to make it a perfect cube?
Using prime factorisation, find which of the following are perfect cubes.
729
