What is the rule to find the unit digit if 3 to the powe is present
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It is seen that the unit place of powers of 3 are repeating as 3,9,7,1 so this repeatation is continued after 4 so when you are given any power of sleep at first you have to divided by 84 and if the remainder is 1 the unit place will be 3 if the remainder is 2 the unit place will be nice if the remainder is 3 the unit place will be 7 and if the power is divided by 4 the unit place will be 1.
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