### Special sequences

Special sequences 1. Square numbers 2. Cube numbers 3. Triangular numbers 4. Fibonacci numbers Square numbers A square number is the product of multiplying a whole number by itself. Square numbers can be represented using dots arranged to make squares. The general formula of sequences: $displaystyle {{T}_{n}}={{n}^{2}}$ Square numbers form the (infinite) sequence: 1,4,9,16,25,36,……….. Square numbers may be […]

### Sequences

Powers and Roots An expression that represents repeated multiplication of the same factor is called a power. So, when we want to multiply a number by itself repeatedly we use powers. $displaystyle {{a}^{n}}$ tells  you  to multiply  a  by itself, exactly n-times. The exponent corresponds to the number of times the base is used as […]