Question

chu so tan cung cua 7¹⁰¹ la

Answer 1

7^101=7^100.7=7^4.25 .7 =(....1) .7= (.....7)

=> Chu so tan cung cua 7^101 la 7

Answer 2

7¹⁰¹

= 7¹⁰⁰ . 7

= (7⁴)²⁵ . 7

= (...1)²⁵ . 7

= (....1) . 7 

= (....7)

Tận cùng là 7