Sequences and Series
The minimum value of the sum of real numbers a−5+a−4+3a−3,1,a8 and a10 with a>0 is
If the sum of first p terms of an A.P. is equal to the sum of the first q terms, then find the sum of the first (p + q) terms.
Write first four terms of the AP, when the first term a and the common difference d are given as follows:(i) a = 10, d= 10
(ii) a = –2, d = 0
(iii) a = 4, d = – 3
(iv) a = – 1, d = 1/2
(v) a = – 1.25, d = – 0.25