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avatar+418 

Consider the given equation.

 

cot(y)/

sec(y)

 = csc(y) − sin(y)

(a) Verify algebraically that the equation is an identity.

???



(b) Confirm graphically that the equation is an identity.

????

 Dec 4, 2019
 #1
avatar+109397 
+1

cot y

_____   =

sec y

 

 

cos y  / sin y

___________  =

    1 / cos y

 

 

cos y          cos y

_____  *   ______  =

sin y             1

 

 

cos^2  y

________  =

  sin y

 

 

1 -  sin^2 y

_________   =

  sin y

 

 

 1

____   -  sin y   =

sin y

 

 

 

csc y  -  sin y

 

 

 

cool cool cool

 Dec 4, 2019
 #2
avatar+109397 
+1

Here's the graph  :

 

https://www.desmos.com/calculator/rpczckxvae

 

 

cool cool cool

 Dec 4, 2019

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