Find last two digit of 1021 3921 3081 3921
Asked by admin @ in Math viewed by 385 People
Find the last digit of 1021^3921+3081^3921 plz answer it fast !!!!!!!!!!!!!!!!!!!!!
Answered by admin @
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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