Answer Key for Extension Problems

Here is the the answer key for the extension problems given in class.

You can email tonight if you have more questions.

Trig Identities

Lots of Proofs this unit! We start with simplifying practice and then jump in.

Note: We will be using the Demana book for most, but not all, of the assignments.

2/11  Trig Identity basics
          HW D p.410-411/3-60 by 3's, 69-73 odd

2/14  Simplifying for a solution
          HW D p.411-412/52-62, 75-82, 85
2/15  Proving Trig Identities
          HW D p.418/11-39 odd
2/16  More Practice
          HW D p.419-420/41-51 odd, 52-60, 71, 80
2/18  Sum and Difference Formulas

2/19 - 2/27 February Vacation

2/28  Review all, More with Sum and Difference Formulas
          HW D p.425-427/3,5,7,13,17,21,27,29,31-35,37,43,45,47,48,52,55,73
3/01  Double Angle, Half Angle and Power Reducing Formulas
          CW B p.374/39-41, p.385/45-47
          HW D p.432/3-30 by 3's, 39-45 odd, 53
3/02  Review and Extension Problems  CW Worksheet
          HW B p.384-385/37,51,52,53 and p.390-391/23,26-28,43,44
3/04  Trig Identities Test

The plan until the test of Geometric Trig

You will be working through the following Mixed Trig problems, in class and at home, and then we will have a test.

Mixed Trig Problems: p.356-358/11,14,18,21,24,25,29-35,37-40,42

You also need to do the Hero's Formula derivation.

The Geometric Trig test will have questions that require a full understanding of the trig area formula, the Law of Sines, and the Law of Cosines. There will be one problem (chosen by me) from the "C" problems on page 358. I have not assigned every problem in the unit but notice that after you finish these problems you should be able to find the area, the sides, the angles, the length of the median/angle bisector/altitude, and the radii of the inscribed and circumscribed circles for any triangle - among other things.

2/09 Test for E-Block
2/10 Test for G-Block

We may have to change the dates of the test for various reasons (weather, lack of progress on the problems, other unforeseen difficulties) but that is what we are aiming for.

Homework on the snow day

Sorry but we are behind the other Honors Advanced Math classes and these problems are just continuations of what we were doing before (no instruction necessary!). This will also bring both classes into alignment for the schedule.

9.1, 9.4  Mixed Trig Problems
            HW p.337-338/31-33, 37  and  p.356-358/11,14,18,21,24,25,29,34

Geometric Trig

Post-test homework was to do the area and identity worksheet. We continue with the more geometric applications of trigonometry. For this we will use primarily the Brown book.

1/26  9.2  Area Formula and applications
            HW p.342-344/1-19 odd, 20-22, 35, 36
            (p.344/34 is a bonus problem - turn it in for extra credit)
1/27  Snow Day This puts G-Block a day behind E-Block.
1/28  9.3  Law of Sines for E-Block, More Area for G-Block
            HW p.347-349/1-27 odd

1/31  9.4  Law of Cosines
            HW p.352-354/1-17 odd, 22
2/01  9.1, 9.4  Mixed Trig Problems
            HW p.337-338/31-33, 37  and  p.356-358/11,14,18,21,24,25,29,34

Snow day and the adjustment of the schedule

Given that there is no opportunity for asking questions before our Ch 4 test due to the snow day, the test will move to Tuesday, January 25th for both sections.

You are all highly recommended to practice sinusoids (writing equations from information in particular) as that seems to be a weakness from your quizzes. Problems in Brown have been assigned to the G-Block class. There are more that weren't assigned. Do what you need to do.

The review sheet that was to be handed out to E-Block today is available for download here. The answer key is available in the previous post.

More Sinusoids

We are working our way towards a quiz on sinusoids, then finishing the chapter for a test.

1/04 Trig Evaluation Practice and Extra Problems
           HW finish problems 1-18 of Extra Problems worksheet
1/05 Discuss Extra Problems Worksheet
           HW finish Extra Problems worksheet
1/07 Solving with Sinusoids  CW 1-5
           HW 1-4

1/10 Continue Solving with Sinusoids
           HW finish rest of handout
1/11 Quiz of 4.1-4.4
1/12 Snow Day; G-Block will be 1 day ahead
1/13 Professional Developement - Half Day (B A G F)
1/14 Graphs of the other Trig functions and Inverse Trig functions
           HW p.366-368/13-16,18-39 by 3's,43,60,63,64 and p.385/37-40

1/17 Martin Luther King Day - no school
1/18 G-Block: Review;  E-Block: Snow Dismissal
1/19 E-Block: Inverse Trig Functions
           HW finish handout plus p.385/47,49,51
1/20 G-Block: Extra Sinusoid Problems
           HW in Brown: p.306-307/30,31,33,36 and p.314-316/15,17,18,21,25,26
1/21 End of Term 2, G-Block: Area of Triangles;  E-Block: Review of Chapter  answer key

1/24 Test of Ch 4