1.

Find the last digit of 1021^3921+3081^3921 plz answer it fast !!!!!!!!!!!!!!!!!!!!!

Answer»

ANSWER:

This question has nothing to do with any digit except the unit digit.

we know that 1^2=1

1^3=1

1^4=1 and so on

so any power of one.

so the unit digit of 1021^3921=1

similarly 3081^3921=1

so the unit DIGITS are 1 in both the numbers

so sum is 1+1=2


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