Find the unit digit of `3^(47) + 7^(52)`.

Explanation

The unit digit of the given expression will be equal to the unit digit of the sum of the unit digit of both the terms individually.
Now, unit digit of `3^47` is 7 (since it will be equal to `3^3`) and the unit digit of `7^52` is 1 (since it will be equal to `7^4`)
Thus the unit digit of `3^47+7^52` is 7+1=8.