You will learn Modulus function later on in c3, it is basically the positive form for any real number. The though the proper definition would be the distance away from 0 on the real number line, remember distance meaning length, (length can't be negative), so modulus denoted |A| = Modulus of A. Don't worry about this for now, it's just knowing how to use the formula :

The formula is /

**Binomial Series**:

Let's assses line 1, which states :

**(1+x)^alpha**= The sum of all terms starting from k=0 till infinity, of the binomial coefficient (alpha k)* x^k.

Where the

**binomial coefficient**is :

The difference between the Binomial Theorem and Binomial Series is that the Binomial Theorem, is just a rule for expanding an expression (x + y)^n... the Binomial Series is the sum of the terms of the sequence, this can be

**finite or infinite.**I will post some examples below soon !