Short trick for cube root.
Answers
Step-by-step explanation:
if u find the cube root of some perfect cube u want to know about some basic
like
(1)^3 = 1 = cube of 1 ends with one
(2)^3 = 8 = cube of 2 ends with 8
3 Ka cube = 27 = end with 7
so on ......
you make it roughly
let us take an example
find out the cube root of 19683
step 1.... underline the last three digit and see its ending with 3 means that
19683
____
explanation. remind the table we know that cube of 7 ends with 3 so the unit digit required number 7 would be ..
step 2.....now thought any table .find the greatest cube which is less than 19
bcoz 7 is less than 9 .we can see in this case it is 8 and its cube root is 2 ..
the digit at tens place is 2
19683
! !
.
2. 7
hence it is the 27
19683 is the cube root of 27.......
hope u like it