maths
Maths Puzzle
Show that 1 + x + x2/2! + x3/3! + ... + x2n/(2n)! is positive for all real values of x.
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maths Other Question
Find all solutions of 3x + 4y = 5z, for integers x, y, and z.
Let x, y, n be positive integers, with n > 1. How many solutions are there to the equation xn − yn = 2100?