Math, asked by nasheedhams, 1 month ago

The 10th term of an arithmetic sequence is 20 and its 20th term is 10.

(a)What is its common difference?
(b) What is its 30th term ?
(c)Which is the first negative term of this sequence ?​

Answers

Answered by barani7953
2

Step-by-step explanation:

more ... The difference between each number in an arithmetic sequence. Example: the sequence {1, 4, 7, 10, 13, ... } is made by adding 3 each time, and so has a "common difference" of 3 (there is a difference of 3 between each number)

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