Answer:
The sum of the first 18 odd positive integers is 324.
Step-by-step explanation:
Given : The first 18 odd positive integers.
To find : The sum of the first 18 odd positive integers?
Solution :
The odd positive integers are 1,3,5,.... forming an Arithmetic sequence .
Where, First term is a=1
Common difference is d=2
Number of terms n=18
The sum of A.P formula is
Substitute the values in the formula,
Therefore, The sum of the first 18 odd positive integers is 324.