Find the first term and common difference of the Arithmetic Progressions whose nth terms are given below
(ii) tn = 4 - 7n
To find the 1st term of the sequence, we have to apply n = 1.
d = t2 - t1 = -10 - (-3) = -10 + 3 ==> d = -7
Hence the first term and common difference are -3 and -7 respectively.