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what are counterexamples to cscxtanx=cosx

 Dec 18, 2018
 #1
avatar+101827 
+2

This isn't true

 

csc x = 1/sin x

tan x =  sin x / cos x

 

So

 

csc x tan x  =

 

(1/sin x) * sin x / cos x    =

 

1 / cos x   = 

 

sec x

 

and  this does not equal  cos x

 

 

cool cool cool

 Dec 18, 2018
 #2
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I know it is false i need numbers for a counterexample.

Guest Dec 18, 2018

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