Question

For the following arithmetic progressions write the first term a and the common differnced:
(i) $-5,-1,3,7\dots$
(ii) $\frac{1}{5},\frac{3}{5},\frac{5}{5},\frac{7}{5},\dots$
(iii) $0.3,0.55,0.80,1.05,\dots$
(iv) $-1.1,-3.1,-5.1,-7.1,\dots$

Answer 1

a --> The first term of arithematic progression.
d ---> Difference between two consecutive terms

(i) a = -5
d = -1 - (-5) = 4

(ii) a =
d =

(iii) a = 0.3
d = 0.55 - 0.3=0.25

(iv) a = -1.1
d = -3.1 - (-1.1) = -2