Question

27. What is the last digit of (25)¹¹ - (4)¹¹​

Answer 1

Answer:

(25)^11-(4)^11

(25)^11 last digit is 5

(4)^2=16

(4)^3=64

(4)^4=256

(4)^5=1024

so , (4)^11 last digit is 4

so, last digit of (25)^11-(4)^11 is (5-4)=1