Question

Write first term and common difference of the a.p. 3.3, 3.1, 2.9....

Answer 1

Answer:

for common difference

formula=a2-a1 so

3.1-3.3= -0.2

first term = a1= 3.3

( also check whether a2-a1=a3-a2 if a2-a1not equal to a3-a2 then given s3quence is not in a.p.)