Trigonometric Identity Homework: Solving with Sin and Cos Formulas

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Homework Help Overview

The discussion revolves around a trigonometric identity problem, specifically focusing on the use of sine and cosine formulas to simplify or solve the expression. Participants are exploring the relationships between different trigonometric functions.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to convert the problem into sine and cosine terms but expresses feeling stuck. Some participants question the visibility of shared images, while others provide feedback on a specific step in the solution process, highlighting a potential error in handling a negative sign.

Discussion Status

The discussion is active, with participants engaging in clarifying steps and addressing misunderstandings. Guidance has been offered regarding a specific mathematical manipulation, and there is acknowledgment of the original poster's efforts.

Contextual Notes

There is mention of a specific problem number, which may imply constraints related to homework guidelines. The visibility of shared resources, such as images, is also a point of contention in the discussion.

Feodalherren
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Homework Statement


Homework Equations



Any trig formulas

The Attempt at a Solution


one_0001.jpg

one_0002.jpg


The yellow paper is me switching everything to sin and cos to see if that helps but it doesn't. I'm completely stuck here.
 
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Oh yeah, it's problem fifty. Forgot to say that :).
 
Feodalherren said:
Oh yeah, it's problem fifty. Forgot to say that :).

What yellow paper ?
 
You can't see the images?
 
Feodalherren said:
You can't see the images?
Not at all.
 
http://img839.imageshack.us/img839/2928/one0001.jpg

Does that work?
 
Last edited by a moderator:
at the step where you combine the two fractions you sucked in the minus sign and then lost a minus as you multiplied the second term with 1-tan(theta). Do you see that?

you should instead have: 4 tan(theta) / ( 1 - tan^2(theta) )
 
Got it. Thank you!
 

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