Wednesday, January 13, 2010

Noelle - January 13, 2010

Today Mr. Obrien was absent because of a ski race he had to go to. He passed out the list of Unit 4 homework assignments to be corrected and submitted by FRIDAY. Don't forget for your homework grade, an easy A.

In class we worked on the Sequences and Series Practice sheet and answered the multiple choice like we would on the Midterm. This means that for each question you must rank each answer your first choice, second choice, third choice, and fourth choice. You can receive partial credit if your first choice is wrong, but your second, or third, or fourth choice is correct out of the five available choices.
What do we do if we know the right answer... Do we still rank the others?

Last Night's Homework Problem Questions: 19, 25, 29, 63 (this one made sense but I couldn't get the answer on my calculator...)

Be prepared for a Unit 4 Homework Quiz on Friday on Sequences and Series, including the revision sheet we worked on today. *** The first question on the quiz will be to write the five formulas- closed form for:
arithmetic - a_n=a_{1}+d(n-1)
geometric - a_n=a_{1}\times r^{n-1}

and sum for:
arithmetic - S_{n}=\frac{n}{2}(a_{1}+a_{n})
geometric - S_{n}=\frac{a_{1}(1-r^{n})}{1-r}
infinite geometric - S_{\infty }=\frac{a_{1}}{1-r}

Remember quiz questions come from homework problems we've gone over, so if you can do the homework most likely you'll be ok.

Homework: Study for Quiz and prepare Unit 4 Homework to be passed in. Finish Sequences and Series worksheet if not finished in class.

Next Scribe: Nick(?) not entirely sure who has and hasn't gone...
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1 comment:

  1. JuliaJanuary 15, 2010 at 11:39 AM

    On My Mind: Thanks for putting the formulas on here. It's really helpful.

    ReplyDelete

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