# multipication

1. ### multipication of power series

I was wondering if someone could please check my work because i keep getting this one wrong: so the function is: e^8x ln\left(1 - \frac{x}{3}\right) and so far i have e^8x = 1 + 8x + \frac{64x^2}{2!} + ... ln\left(1 - \frac{x}{3}\right) = -x - \frac{x^2}{6} - \frac{x^3}{27}...
2. ### Where does matrix multipication come from?

Hi, I am trying to get my head around the origin or matrix multiplication. Is a good description just: "Matrix Multiplication is just solving a system of linear equations. For example a nxm matrix 'A' (representing the coficients of n equations with m coefficients each) 'multiplies' by a mx1...
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### Multipication and division Expressions (HELP!!!!!!)

I have three problems that I'm stumped on Please help :confused: Math is not my favorite subject :mad: Help!!! anyone out there... :D 1. 401 + 18 x z for z = 10________ 2. 55 - K ./. 6 for k = 30 _________ 3. 32 + 55 x b ./. 11 for b = 2___________ this symbol is divided by ./...