Question

22. If the terms of the arithmetic sequence
2 3 4 5
o'o'o'o .......... are represented as x,, X,
X, ........, then
a. x, + x2 + x3 = ........
b. x + xy + x6 = ........
c. Find the sum of first 9 terms.
d. What is the sum of first 300 terms?​

Answer 1

first find the common difference and install it by the AP formula