Lesson 44.

NOTE 1: Be sure to read Homework Format, Homework Writing Policy, and Explanations Expected BEFORE writing up your solutions to be turned in.

NOTE 2: When two or more Lessons are to be turned in on the same day, please staple the Lessons separately and turn them in separately.

Last modified Nov 22, 2009 7:23 AM

Due Friday, November 20.

Sect. 7.1:
Be sure to note that there are many more exercises suggested in the list of suggested homework posted online.

Exercises  34,  38**,  42*.

*  Exercise 42 has instructions. The instructions contain identities that you are supposed to use to evaluate the quantities given. You will have to give some thought to how you use the identities to solve the problem. The basic idea is to use the given identities to reduce the quantities given to trig functions of special angles between 0 and π/2. Don't just use your calculator to evaluate the quantities given.
Updated Nov 14:
After expressing the given trig expression as a trig function of a number between 0 and 2π, proceed as follows:
  • If the angle is between 0 and π/2, or is an integer multiple of π/2, just write down the answer.
  • If the angle is bigger than π/2 and not an integer multiple of π/2, USE REFERENCE ANGLES to express the value you need as a trig function of an angle between 0 and π/2, and then evaluate it.

** Exercise 38 has only very brief instructions. You are supposed to use the even and odd properties of the trig functions to evaluate the quantities given. You will have to give some thought to how you use these properties to solve the problem. Don't just use your calculator to evaluate the quantities given.

NOTE:
These problems have instructions in the textbook.
These problems have instructions given above.
You are expected to note the instructions.
You are expected to read the instructions.
You are expected to follow the instructions.
You will lose points -- perhaps a substantial number of points -- if you do not read and follow the instructions.

NOTE 1: Be sure to read Homework Format, Homework Writing Policy, and Explanations Expected BEFORE writing up your solutions to be turned in.

NOTE: As stated on the Course Home Page, all due dates are tentative. Assignments, or parts of assignments, may be postponed to a later date.


Last modified Nov 22, 2009 7:23 AM

Go to Lesson 45 (due Nov 20).

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