Advertisements
Advertisements
प्रश्न
Find the cube-root of −125 × 1000.
Advertisements
उत्तर
−125 × 1000
= `sqrt(-125 xx 1000)`
= `sqrt(-(5 xx 5 xx 5) xx (10 xx 10 xx 10)`
= −5 × 10
= −50
APPEARS IN
संबंधित प्रश्न
Find the cubes of the number 21 .
Write the cubes of 5 natural numbers which are of the form 3n + 1 (e.g. 4, 7, 10, ...) and verify the following:
'The cube of a natural number of the form 3n + 1 is a natural number of the same form i.e. when divided by 3 it leaves the remainder 1'.
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
675
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
2560
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
107811
What is the smallest number by which the following number must be multiplied, so that the products is perfect cube?
35721
Prove that if a number is trebled then its cube is 27 times the cube of the given number.
Write true (T) or false (F) for the following statement:
If a divides b, then a3 divides b3.
Write true (T) or false (F) for the following statement:
If a2 ends in 5, then a3 ends in 25.
Find the smallest number that must be subtracted from those of the numbers in question 2 which are not perfect cubes, to make them perfect cubes. What are the corresponding cube roots?
Find if the following number is a perfect cube?
24000
Find the smallest number by which 27783 be multiplied to get a perfect cube number.
Find the cube-root of 8000.
Find the cube-root of -1331
Find the cube-root of 2.744
Find the cube-root of -216 x 1728
Find the cube-root of `(729)/(-1331)`
The cube root of 250047 is 63
If m is the cube root of n, then n is ______.
If a2 ends in 9, then a3 ends in 7.
