in this blog i will talk about chapter 13 section 1. in this chapter it deals with arithmatic and geometric. artithmatic is when you add the number to every term. geometric is when you multiply by the same nymber for every term. all of this has to do with sequences which is just a list of numbers,
examples:
1) 3,7,11,15....... find a formula for the Nth term
tn= t1+ (n-1)d
tn= 3+(n-1)4
tn= 3+ 4n-1
tn= 4n-1
2) find the formula for the Nth term of 3
3, 9/2, 27/4
9/2 all over 3/1= 9/6= 3/2
27/4 all over 9/2= 3/2
tn= 3x(3/2) n-1
this is all that i learned in section 1 of chapter 13. it is really easy and if anyone needs help you can just ask me. well now im going do my math homework.
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