Thursday, January 23, 2014

7. SOHCAHTOA, 8. Solving Problems with SOHCAHTOA and 9. Word Problems

1/15 to 1/17.  Textbook chapter 8-4, starting on page 456.

On 1/15, we started by introducing the three basic trigonometric functions:  sine, cosine and tangent.  We set up the ratios, or fractions, that they used.  In particular, look at example 1 on page 457.
Classwork:  page 460 #1,2

On 1/16, we practiced using the trigonometric ratios to solve a problem.  In particular, look at examples 3 and 4 starting on page 458 in your textbook.
Classwork: page 4461 #44-49

On 1/17, we practiced solving word problems using trigonometric functions.
Classwork: handout provided.


Here's a couple of websites that explains the basic trigonometry we are learning:
http://www.mathsisfun.com/sine-cosine-tangent.html
http://www.regentsprep.org/Regents/math/algtrig/ATT1/trigreview.htm

Here's a couple of youtube videos I found:
http://www.youtube.com/watch?v=XFh_JC7OSrg
http://www.mathwarehouse.com/trigonometry/sine-cosine-tangent-practice2.php

Don't forget to turn in your notebooks!

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