Related Questions
If the sum of first m terms of an A.P. is n and sum of first n terms of the same A.P. is m, show that sum of first (m + n) terms of it is -(m + n).
3rd term of a G.P. is 27 and its 6th term is 729; find the product of its first and 7th terms.
Find the sum of the sequence 96 - 48 + 24 ……… upto 10 terms.
Find the sum of first n terms of :
(i) 4 + 44 + 444 + ……
(ii) 0.7 + 0.77 + 0.777 + …….