Question

3.
Find the first term and common difference for each of the A.P.
(1) 5, 1, -3, -7,...
(2) 0.6,0.9, 1.2, 1.5, ...
1 3 5 7
(3) 127, 135, 143, 151, ... (4)
44' 4'4'4''
Let's think.​

Answer 1

Answer:

(1) a= 5

d= -4

(2) a= 0.6

d= 0.3

(3) a= 127

d= 8

a= first term

d= Common difference

Answer 2

A) First term -11
difference subtracting-4
B) first term 1.8
Difference adding 0.3
C) first term 159
Difference adding 8