Question

find the digit in units place in the expansion of the following:
1) 2¹⁹⁶⁷
2) 3¹⁹⁶⁹
3)4¹⁹⁷⁰
4) 4¹⁹⁷¹
5) 5⁵⁵⁵
6) 6¹⁰⁰⁰
7) 7²⁰⁰⁷
8) 8²⁰⁰⁹
9) 9¹⁹⁹⁹
10) 9²⁰⁰⁸​

Answer 1

Answer:

We know that the unit's place of 5

We know that the unit's place of 5 x

We know that the unit's place of 5 x where x is any natural number is always 5.

We know that the unit's place of 5 x where x is any natural number is always 5.∴ the unit's place of 5

We know that the unit's place of 5 x where x is any natural number is always 5.∴ the unit's place of 5 834

We know that the unit's place of 5 x where x is any natural number is always 5.∴ the unit's place of 5 834 is 5.