SOLUTION: Please help me find the correct equation for this nth root term. 200, 50, 12.5 ... Equations: https://s32.postimg.org/qwubiv651/eq1.png

Algebra ->  Finance -> SOLUTION: Please help me find the correct equation for this nth root term. 200, 50, 12.5 ... Equations: https://s32.postimg.org/qwubiv651/eq1.png      Log On


   



Question 1041433: Please help me find the correct equation for this nth root term.
200, 50, 12.5 ...
Equations: https://s32.postimg.org/qwubiv651/eq1.png

Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.
Please help me find the correct equation for this nth highlight%28cross%28root%29%29 term.
200, 50, 12.5 ...
~~~~~~~~~~~~~~~~~~~~~~

Geometric progression with the first term a%5B1%5D = 200 and the common ratio r = 1%2F4.


a%5Bn%5D = a%5B1%5D%2Ar%5E%28n-1%29 = 200%2F4%5E%28n-1%29, n = 1, 2, 3, . . . 


The answer is the option D.

On geometric progressions read the lessons
    - Geometric progressions
    - The proofs of the formulas for geometric progressions
    - Problems on geometric progressions
in this site.