Types of Matrix, The matrix1, Freshman Mathematics, tutorial in Amharic

Get a Glimpse of The Kind of Problems Students from Harvard, MIT, and Other Universities in the United States and Canada Are Solving... This is Problem 1A in the 1993 Putnam Exams and is considered the easiest problem in that set. The rest of the questions are way more difficult. According to the website of the Mathematical Association of America, "The Putnam began in 1938 as a competition between mathematics departments at colleges and universities. Now the competition has grown to be the leadi