makeup blogggggg

this blog is from the week i missed because of swimming

section 13-2

this section is just about recorsive numbers in a sequence

tn-1 means previous term

tn-2 means two terms back

tn-3 means three terms back

recorsive means define in terms of what came before

find the 2nd and 3rd terms

they give you a starting number and a sequence

t1=7 tn=tn-1+1

brob said you look at tn-1 as the term before and not as anything minus 1

so you take your first number and you plug it in

you will get tn=4(7)+1

then you get 29

so then you plug that number in to get the next one

so you get tn=4(29)+1 which equals 117

you do that to find infinite numbers in a recorsive sequence

example number 2

they could ask you what was asked above or they could give you the numbers and ask you to write a recorsive definition. which means a formula!

so if they gave you 4,7,10,13

you can see that they are adding three

soo tn=tn-1=3

and you use that formula to find other numbers