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  • ...2 + 2^{2008}</math>. What is the units digit of <math>k^2 + 2^k</math>? ([[2008 AMC 12A Problems/Problem 15]]) ...f(20)</math>. ([https://pumac.princeton.edu/info/archives/pumac-2008/ 2008 PUMaC, NT A#5])
    16 KB (2,660 words) - 22:42, 28 August 2024