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verify the Pythagorean identity 1 + cot^2x = csc^2x

 Jul 15, 2015

Best Answer 

 #1
avatar+128079 
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1 + cot^2x  =  csc^2x     work on the left side.........

 

1 + cos^2x/sin^2x   = 

 

[sin^2x + cos^2x]/ sin^2x  =

 

[1 / sin^2x] = 

 

csc^2x    which  equals the RHS

 

 

  

 Jul 15, 2015
 #1
avatar+128079 
+5
Best Answer

1 + cot^2x  =  csc^2x     work on the left side.........

 

1 + cos^2x/sin^2x   = 

 

[sin^2x + cos^2x]/ sin^2x  =

 

[1 / sin^2x] = 

 

csc^2x    which  equals the RHS

 

 

  

CPhill Jul 15, 2015

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