SOLUTION: Find the value of: sec[sec^-1 4/9] Thank you!

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Question 1172880: Find the value of:
sec[sec^-1 4/9]
Thank you!
Answer by ikleyn(52799) About Me  (Show Source):
You can put this solution on YOUR website!
.

sec%5E%28-1%29%284%2F9%29  does not exist,


since the sec values can not be in the interval (-1,1).


They ALWAYS are out of this interval.