Question

first term of an arithmetic sequence is 7 and the common difference is 4. is 100a term of this sequence? why​

Answer 1

Step-by-step explanation:

An = A+(n-1)d

Given, An =100

A=7, d=4, n=?

n is no.of terms(has to be a whole number)

Using the Formula,

An = A+(n-1)d ,

100=7+(n-1)4

(n-1)=93/4

(n-1) also has to be a whole number,

93/4 is not a whole number,

So,

100 is NOT a part of this series.