Posted by Charles on Wednesday, October 8, 2008 at 8:48pm.
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
sec (-2radian)=-2.40 by calculator
square that, and you get...
sec (-2radian)=-2.40 by calculator
square that, and you get...
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