Question
Mon July 18, 2011 By:
cosecx= 1/sinx, x#n ?

i can't understand the logic behind writing trigonometric ratio like this

Expert Reply
Mon July 18, 2011
If x=n,then sinx=0 (since sinn=0)
so,at x=n the value of cosecx= become not defined .
Therefore,cosecx=.
similarly ,all other cases can be explained.
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