Question

3. Write an explicit formula for the sequence1/2,3/7,1/3,5/19,3/14 , ... Then find a(14). (1 point)

Answer 1

15/99 i belive is a(14) but i need help writing the formula

Answer 2

15/199*

Answer 3

1/2, 3/7, 1/3, 5/19, 3/14

hmm, is the average of 1/2 and 1/3, 3/7 by any chance?

Answer 4

well, its not arithmatic then ....

1/2 * (2*3/7) = 3/7

is 3/7 * (2*3/7) = 1/3 ? nope,, so it aint geometirc

Answer 5

1/2, 3/7, 1/3, 5/19, 3/14

(1, 6/7, 2/3, 10/19, 3/7) /2

(7, 6, 14/3, 70/19, 3) /14

(21, 18, 14, 210/19, 9) /42

(399, 342, 266, 210, 171) /798

that at least gets us all common denominator if ituseful

Answer 6

why do you think 15/99 is it?