Question

what is arithmetic progression​

Answer 1

Step-by-step explanation:

SYMBOL:

The initial term has the symbol u1 and in some textbooks the symbol a is used. The table above suggest that any term un in an arithmetic sequence can be expressed as u1 + (n-1)d. Thus, we have un = u1 + (n-1)d for n greater or equal to 1 and n is positive integer.

TYPES:

Arithmetic Sequences. A sequence in which every term is created by adding or subtracting a definite number to the preceding number is an arithmetic sequence.1)Geometric Sequences. ...2)Harmonic Sequences. ...3)Fibonacci Numbers.

FORMULA:

an=a1+(n-1)d

an=the nᵗʰ term in the sequence

a1=the first term in the sequence

d=the common difference between terms