Question

.Find unit place in (176)²+(121)²=?

Answer 1

As we know that
$6 {}^{n} \:$
Is always 6 so the unit digit of 176 to the power 2 is 6 and the unit digit of 121 to the the power 2 will be 1.
So the the final unit digit will be 6+1=7.

Hope you can understand.. ☺️