Question

the unit digit in 7¹⁰⁵?​

Answer 1

Answer:

7

Step-by-step explanation:

unit digit in 7¹=7

unit digit in 7²=9

unit digit in 7³=3

unit digit in 7⁴=1

unit digit in 7⁵=7

so cyclocity of 7=4

7¹⁰⁵=7¹⁰⁴×7¹

unit digits=1×7

                 =7

If you understood well then it is my pleasure.