Question

what is the unit digit of 1⁶+2⁶+ ....+20⁶​

Answer 1

Answer:

Answer. Hence for every four consecutive powers, the unit digit will follow a pattern of 7,9,3,1. Hence UD of 27^20 will be 1.

Step-by-step explanation:

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Answer 2

Answer:

5⁶ is the answer

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