Advertisements
Advertisements
प्रश्न
Find the cube root of the following natural number 343 .
Advertisements
उत्तर
Cube root using units digit:
Let us consider 343.
The unit digit is 3; therefore, the unit digit in the cube root of 343 is 7.
There is no number left after striking out the units, tens and hundreds digits of the given number; therefore, the cube root of 343 is 7.
Hence, \[\sqrt[3]{343} = 7\] .
APPEARS IN
संबंधित प्रश्न
Write the cubes of all natural numbers between 1 and 10 and verify the following statements:
(i) Cubes of all odd natural numbers are odd.
(ii) Cubes of all even natural numbers are even.
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'.
Prove that if a number is trebled then its cube is 27 times the cube of the given number.
Find the cube root of the following natural number 33698267 .
Show that:
\[\frac{\sqrt[3]{- 512}}{\sqrt[3]{343}} = \sqrt[3]{\frac{- 512}{343}}\]
Making use of the cube root table, find the cube root
7800
Find the cube-root of 2.744
Find the cube-root of - 15.625.
If m is the cube root of n, then n is ______.
If a2 ends in 9, then a3 ends in 7.
