Show that
[a+x]ⁿ=aⁿ[1+×/a]ⁿ, a≠0

Sketch one cycle if the cosine function y=2cos2theta

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years