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location Antarctica
age 79
visits member for 2 years, 3 months
seen Dec 23 '14 at 8:11

Self-learning mathematics. Many thanks to those who make time to help others on the site.


Feb
19
reviewed Approve Finding the coefficient of $x^{25}$ in $(1 + x^3 + x^8)^{10}$?
Jan
15
reviewed Edit General counting problem. Not sure how to proceed.