Mathematics
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).
Related Questions
Find the sum of terms of the A.P. : 4, 9, 14, ……, 89.
Daya gets pocket money from his father every day. Out of the pocket money, he saves ₹ 2.75 on first day, ₹ 3.00 on second day, ₹ 3.25 on third day and so on. Find :
(i) the amount saved by Daya on 14th day
(ii) the amount saved by Daya on 30th day
(iii) the total amount saved by him in 30 days.
3rd term of a G.P. is 27 and its 6th term is 729; find the product of its first and 7th terms.
Find 5 geometric means between 1 and 27.