Question

3) Tenth term of an arithmetic sequence is 36.

a) What is the sum of first term and 19 th term?

b) Calculate the sum of first 19 terms of this sequence

c) If the common difference is 3 what is its 3 rd term

d) Write the algebraic form of this sequence​

Answer 1

Answer:

Given, arithmetic sequence Xn = 5n + 3 a. The first term of the sequence, put n = 1 X1 = 5 × 1 + 3 = 8 b. d = 5 (coefficient of n be the common difference)

Step-by-step explanation:

May this ANSWER will help you plz mark has brainliest