How many types of progression in mathematics?

There are three different type

Explain

In math , there are three different type , they are arithmetic progression ( Ap) , Geometric progression and Harmonic

Arithmetic Progression - When a fix constant is added to each number except the first number.

For example : 2,4,6,8,10 Here 2 is added each time to get the next number.

2. Geometric Progression - When a fix constant is multiplied to each number except the first number.

For example : 2,6,18,54 Here 3 is multiplies each time to get first number.

3. Harmonic - a harmonic progression (or harmonic sequence) is a progression formed by taking the reciprocals of an arithmetic progression.

For example : 1/2 , 1/4 , 1/6, 1/8

40%=2/550=1/230=3/1056=14/25