Convertong polar equations to rectangular eq.

  • Thread starter catteyes
  • Start date
  • #1
catteyes
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0

Homework Statement


(theta)= 45Degrees


Homework Equations


(theta)= Arctan(y/x) (x>0)
(theta)= Arctan(y/x) (x<0)


The Attempt at a Solution



Tan(45)=y/x
1 = y/x
Does that mean Y = X?
:confused:
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
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Homework Statement


(theta)= 45Degrees


Homework Equations


(theta)= Arctan(y/x) (x>0)
(theta)= Arctan(y/x) (x<0)


The Attempt at a Solution



Tan(45)=y/x
1 = y/x
Does that mean Y = X?
:confused:
Yes, it does! If you are not convinced, draw an xy- coordinate system, mark the line at 45 degrees to the positive x-axis and draw the line y= x!
 
  • #3
arildno
Science Advisor
Homework Helper
Gold Member
Dearly Missed
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What angle to the positive x-axis does the line y=x make?
 
  • #4
catteyes
9
0
oh 45 degrees.

thanks
 

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