Question

in an ap the correct relation an-5=an+d​

Answer 1

Answer:

Arithmetic progression (A.P.) is a sequence in which each term except the

first is obtained by adding a fixed number (positive or negative) to the preceding term.

Thus any sequence a1

, a2

, a3

... an

, ... is called an arithmetic progression if

an + 1= an

+ d, n ∈ N, where d is called the common difference of the A.P., usually we

denote the first term of an A.P by a and the last term by l

The general term or the n

th term of the A.P. is given by

an

= a + (n – 1) d

The n

th term from the last is given by an

= l – (n – 1) d

Step-by-step explanation:in