Question

consider the arithmetic sequence -172,-165,-158,....
which is the samallest positive number in this sequence?​

Answer 1

Answer:

Step-by-step explanation:

yes plz tell i also want the answer!

Answer 2

Answer:

3, n=26

Step-by-step explanation:

Given, AP is -172,-165,....

Let T be the required term.

Now for the smallest +ve no., T≥1

a+(n-1)d≥1

or, -172+(n-1)7≥1

or, (n-1)7≥173

or, n-1≥173/7

or, n≥173/7+1

or, n≥180/7

or, n≥25+5/7 or,n=26(nearest whole no. for ≥25+5/8)

Therefore, T=a+25d =-172+25*7

=--172+175=3

Hence, smallest +ve no. here is 3 for n=26