Question

3. For the following APs, write the first term and the common difference:
(1) 3, 1, - 1.-3....​

Answer 1

Answer:

first term (a) = 3

common difference (d) = a2-a1= 1-3=-2

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Answer 2

Answer:

a=3 d=- 2

Step-by-step explanation:

first term is a=3

common difference d= term2- term1

d=1- 3

d= - 2