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avatar+315 

Trig

 Apr 29, 2019
 #1
avatar+106535 
+1

r  =  sqrt (x^2 + y^2)

 

r^2  = x^2 + y^2

 

2^2   =  x^2 + y^2  

 

x^2 + y^2  = 4         [ a circle centered at the origin with a radius of 2 ]

 

 

cool cool cool

 Apr 29, 2019
 #2
avatar+315 
+1

Thank you!! smiley

Cupcake  Apr 29, 2019

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