If the sequence x1, x2, x3, ..., xn, ... is such that x1 = 3 and x(n + 1) = 2 xn - 1 for n ≥ 1, then x20 - x19 =
(A) 2^19
(B) 2^20
(C) 2^21
(D) 2^20 - 1
(E) 2^21 - 1
[spoiler]Source: https://www.gmatcram.com[/spoiler]
(A) 2^19
(B) 2^20
(C) 2^21
(D) 2^20 - 1
(E) 2^21 - 1
[spoiler]Source: https://www.gmatcram.com[/spoiler]
The mind is everything. What you think you become. -Lord Buddha
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
