Question

3. For the following APs, write the first term and the common difference:
(i) 3, 1,-1,-3, ...
(ii) –5,-1,3,7,...​

Answer 1

Answer:

Good morning ☺️

a = first term

d = common difference

1. a = a1 = 3

d = a2 - a1

d = 1 - 3

d = -2

2. a = a1 = -5

d = a2 - a1

d = -1 -(-5)

d = -1+5

d = 4

Thank you ☺️

Answer 2

Step-by-step explanation:

(I). a=3

d=a2-a=1-3=-2.

(ii).a=-5

d=a2-a=-1-(-5)=-1+5=4.