Math, asked by saiganeshdrona, 8 months ago

What is unit digit of 6n

Answers

Answered by sinhavivek588

Step-by-step explanation:

Therefore the unit digit of 6^n - 5^n is 6 - 5, which is 1. (Fun fact, the unit digit of 6^n + 5^n is also 1.) ... The integers from 1 to k are concatenated to form the integer N=123456789101112… What is the smallest value of k>2019 such that N is divisible by 9?

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