Find the function of the form y = tan kx

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Homework Help Overview

The problem involves finding a function of the form y = tan kx that passes through the point (290 degrees, -1). The original poster expresses uncertainty about the steps to take after setting up the equation.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to solve for k using the equation -1 = tan k(290 degrees) and questions whether to convert degrees to radians. Other participants engage with this by pointing out the need for consistent units in the equation.

Discussion Status

Participants are exploring the implications of unit consistency in the equation and discussing the calculations involved. There is no explicit consensus on the next steps, but some guidance on unit handling has been provided.

Contextual Notes

The original poster notes a lack of explanation in their online course, which may contribute to their confusion regarding the problem setup and solution approach.

Lepton_dyson
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Homework Statement



Find the function of the form y = tan kx that pass through (290 degrees, -1)

Homework Equations



y = tan kx

The Attempt at a Solution



y = tan kx
-1 = tan k(290 degrees)
arctan(-1) = k290 degrees
-pi/4 = K 290

I don't know where to go from here, or even if this is right...do I try to convert 290 to a rad approximation?? I'm doing this course online and they give very little explanation...Any help is much appreciated!
Thanks!
 
Last edited:
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Welcome to PF!

Hi Lepton_dyson! Welcome to PF! :wink:
Lepton_dyson said:
arctan(-1) = k290 degrees
-pi/4 = K 290

Make up your mind! :rolleyes:

If you have degrees on the RHS, you must have degrees (-45 of 'em) on the LHS also. :smile:
 


tiny-tim said:
Hi Lepton_dyson! Welcome to PF! :wink:


Make up your mind! :rolleyes:

If you have degrees on the RHS, you must have degrees (-45 of 'em) on the LHS also. :smile:

Thanks for the welcome!
Then I just multiply them? so -45(290) = -13050?
y = tan -13050 x -------I just didn't think that looked right...is it?

Thanks for the help!
 
Lepton_dyson said:
Then I just multiply them?!

divide :wink:

and conquer! :biggrin:
 
tiny-tim said:
divide :wink:

and conquer! :biggrin:

Cool thanks for your help!
 

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