Math (Trig)
posted by Charles .
What does sec^2(2) equal? Can you explain why?

Math (Trig) 
Reiny
You want 1/cos^2 (2)
i.e. you want the cosine of 2 radians, then square that result, and finally divide 1 by that.
I got 5.7744 
Math (Trig) 
bobpursley
sec (2radian)=2.40 by calculator
square that, and you get...
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