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 smallest number by which of the following number must be divided to obtain a perfect cube.
128
Find the cubes of the number 55 .
Write the cubes of 5 natural numbers of the form 3n + 2 (i.e. 5, 8, 11, ...) and verify the following:
'The cube of a natural number of the form 3n + 2 is a natural number of the same form i.e. when it is dividend by 3 the remainder is 2'.
Which of the following is perfect cube?
456533
Which of the following are cubes of even natural numbers?
216, 512, 729, 1000, 3375, 13824
Write true (T) or false (F) for the following statement:
8640 is not a perfect cube.
Write true (T) or false (F) for the following statement:
If a2 ends in 9, then a3 ends in 7.
Write true (T) or false (F) for the following statement:
If a2 ends in 5, then a3 ends in 25.
Which of the following number is cube of negative integer - 2197.
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 the cube root of the following natural number 343 .
Find the cube root of the following natural number 1157625 .
Find the cube root of the following integer −32768 .
Show that: \[\sqrt[3]{27} \times \sqrt[3]{64} = \sqrt[3]{27 \times 64}\]
Show that: \[\sqrt[3]{- 125 \times 216} = \sqrt[3]{- 125} \times \sqrt[3]{216}\]
Find the cube-root of 1728.
Find the cube-root of `343/512`
The cube of 0.0012 is 0.000001728.
Square root of a number x is denoted by `sqrt(x)`.
