If n =(79-6) , what is the units digit of n?

If n =(79-6) , what is the units digit of n? Correct Answer 1

Unit digit মানে এককের স্থানের অংক 71 = 7 একক স্থানের অংক 7 72 = 21 " " " 9 73 = 49 × 7 = 343; ফলে 3 হবে 73 এর একক স্থানের অংক 74 = ~73 × 7 = 2401 একক স্থানের অংক 1 75 ~74 × 7 = ~16807 একক স্থানের অঙ্ক 7 এখন 71 এবং 75 repeat হয়েছে, তাহলে 79 এরও একক স্থানের অঙ্ক 7, তাহলে (7 - 6) = 7 - 6 = 1
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