Question

what are the 5 terms for this sequence?? :

f(1) = 0 and f(2) = 1, f(n) = f(n - 1) + f(n - 2), for n > 2.

please help! thanks! <33

Answer 1

The first 5 terms?
Which terms are you looking for?

Answer 2

Like if we plug in 3, what do we get?

Answer 3

Replace n with 3

Answer 4

f(n) = f(n - 1) + f(n - 2)

f(3)=f(3-1)+f(3-2)
f(3)=f(2)+f(1)
You know that f(2)=1 and f(1)=0
So f(3)=?

Answer 5

Umm.. okay. Let's see. F(3) equals... 1?

Answer 6

Yep
now what is f(4)=?

Answer 7

f(n) = f(n - 1) + f(n - 2)
replace n with 4 like so:
f(4)=f(4-1)+f(4-2)
f(4)=f(3)+f(2)

Answer 8

So f(4)=?

Answer 9

f(4) equals 2?

Answer 10

yep
And you can do f(5) now
and so on...

Answer 11

Ohh. Okay! Can you help me understand another one? You describe it much simpler than the lesson does. :))

Answer 12

Ok, go for it!

Answer 13

(i got the first question mixed up but //this// is the one that needs 5 terms in the sequence! woops! :o)

f(1) = 0 and f(2) = 1, f(n) = f(n - 1) + f(n - 2), for n > 2.

Answer 14

oh damn i did it again. okay i meant:

If g(x) = 2(x - 4), find the value of x if g(x) = 20.

ugh! LOL woopsie (again)

Answer 15

So g(x)=2(x-4)
But you want to find what x is if g(x)=20
So 20=g(x)=2(x-4)
Since all of those these should be the same then 20 has the to be the same as 2(x-4)

So we have 20=2(x-4)
solve for x.

Answer 16

Uh... 14?

Answer 17

yep gj