#mathisfun #mathtrick #mathgenius #matholympiad #understandingmathsolympiad #power #lastdigits #binomialexpansion #modulo #decimalnotation
Today I will go through a question to obtain the last digits of a large power.
The key knowledge required to solve this common junior mathematical olympiad questions is binomial expansion. The use of this formula with careful analysis of patterns can yield nice tricks of reducing the large power into small trackable algebra operations. The solution of this question combines few of the popularly used techniques in maths competitions - make sure you familiarize yourself with these and are comfortable applying the skills in problem solving!
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