Denote the sequence by
with
.
Recursively:
The first number is
, and each successive number is twice the previous one. So
,
,
, ... .
In other words,
and so in general,
Explicitly:
We can arrive at this formula by, in a way, working backwards. If
, that means
, and so
, and so on. We would end up with
(You'll notice a pattern here: the exponent of the 2 and the index of the earlier term in the sequence add up to
. For example,
.)
or simply
Then the 15th term is obtained immediately by evaluating this rule at
. We get
Answer:
Y(3)-Y(2)+Y-1 the explanation is to long
I believe it is 0.4318 metres, which is 1 foot 5 inches.
I hope this helps!
- Zoe
Answer:
x^2 - 10x + 25
Step-by-step explanation:
I'm hoping that the 2 means squared.
x^2 - 10x + 25