Question

Find the one's digit of the cube of each of the following numbers. (i) 3331 with formula​

Answer 1

Step-by-step explanation:

ehq-yfip-xyc,,,,,,,,,,,,,

Answer 2

Solution :-

( a ) As we know that cubes of numbers ending with digit 0,1,4,5,6 and 9 ends in digit 0,1,4,5,6 and 9 , respectively.

(b) Numbers ending with digit 2 ends in 8 and vice-versa.

(c) Number is ending digit 3 or 7 ends in 7 or 3 , respectively.

$\rule{300pt}{.1pt}$

(i) 3331, end digits 1

Hence, cube of this number ends with 1.

One's digit of the cube of 3331 is 1.