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If n is an​ integer,n•180° represents an integer multiple of 180° and

​ (2n+​1)•90° represents an odd integer multiple of

90°​,and so on. Determine whether the expression is equal to​ 0,

​1,−​1, or is undefined.

csc​(n•180°​)= 

 May 11, 2021
 #1
avatar+121055 
+2

csc  ( n * 180) =    1  / sin (n * 180)    but   sin 180  = 0    so  sin (n*180)   = 0

 

So

 

1  / 0    =   undefined

 

 

 

 

cool cool cool

 May 11, 2021

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