Category: Updates

How is 4 the magic number?

Four is the only number that has the same number of letters in it as the value of that number. The way it works is you take any number, count the number o...

What is a increasing sequence?

A sequence {an} is called increasing if. an≤an+1 for all n∈N. It is called decreasing if. an≥an+1 for all n∈N. If {an} is increasing or decreasing, then i...