Advertisements
Advertisements
Question
If a2 ends in 5, then a3 ends in 25.
Options
True
False
Advertisements
Solution
This statement is False.
Explanation:
∵ (35)2 = 1225 ends in 5 and (35)3, i.e. 42875 does not end in 25.
APPEARS IN
RELATED QUESTIONS
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'.
Which of the following number is not perfect cubes?
1728
Find the cube root of the following natural number 4913 .
Show that: \[\sqrt[3]{- 125 \times 216} = \sqrt[3]{- 125} \times \sqrt[3]{216}\]
Making use of the cube root table, find the cube root
7000
Making use of the cube root table, find the cube root
1100 .
Find the cube-root of 64
Find the cube-root of `27/64`
`root(3)(8 + 27) = root(3)(8) + root(3)(27)`.
