A) 0
B) 4
C) 6
D) 7
Correct Answer: B
Solution :
Unit digit in \[{{7}^{4}}\] is 1. So, unit digit in \[{{7}^{92}}\]is 1. \[\therefore \] Unit digit in \[{{7}^{95}}\] is 3. Unit digit in \[{{3}^{4}}\] is 1. \[\therefore \]Unit digit in \[{{3}^{56}}\] is 1. \[\therefore \]Unit digit in \[{{3}^{58}}\] is 9. \[\therefore \]Unit digit in \[({{7}^{95}}-{{3}^{58}})=(13-9)=4.\]You need to login to perform this action.
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