Progression (Sequence and Series)Hard
Question
If a and l be the first and last term of an A.P. and S be the sum of its all terms; then its common difference is-
Options
A.
B.
C.
D.None of these
More Progression (Sequence and Series) Questions
If = 2(3n − 1) V n ≥ 1, then is equal to -...If the product of three terms of G.P. is 512. If 8 added to first and 6 added to second term, so that number may be in A...If first term of a decreasing infinite G.P. is 1 and sum is S, then sum of squares of its terms is-...Sum of the series 1 + 3 + 7 + 15 + 31 + .... to n terms is-...Two numbers are in the ratio 4 : 1. If their AM exceeds their GM by 2, then the numbers are-...