What is the exact value of #csc (pi)#?

1 Answer
Gió
May 13, 2015

You cannot get an exact value;
Considering that #csc(x)=1/sin(x)# and that #sin(pi)=0# you get:
#csc(pi)=1/sin(pi)=1/0# which cannot be calculated.
Graphically you have:
![http://pca3f11.blogspot.com.br/2011/11/http://graphs-of-csc-sec-cot-and-tan.html](https://useruploads.socratic.org/OS0hhljxQtSkWLrVfBk0_csc.jpg)
Getting near to #pi# makes the #csc# become very big (positively or negatively).

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