proof that 0.999 … = 1 and that it isn’t

That it is: If x = 0.999 ... , 10x = 9.999 ..., 9x = 10x - x = 9 therefore x=1 = 0.999 ...1/3 = 0.333 ..., 2/3 = 0.666 ..., therefore 3/3 = 1 = 0.999 ... That it isn't: Look, let's do the whole thing, then do it again, only replacing the … Continue reading proof that 0.999 … = 1 and that it isn’t

Maths, but simpler

Have you ever thought of maths as hard? Well, here's a simplified version of its categories: Arithmetic: adding, subtracting, multiplying and dividing numbers (don't forget powers and roots!)Algebra: using x, y, z, a, w, etc. to figure out the value of an unknownCombinatorics: basically combining things?Geometry: shapes!!!!! YES!Topology: stretching, bending and squeezing solids to make … Continue reading Maths, but simpler