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CrossFit415
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Homework Statement
How would I know if let's say
Sec^2 = 5 / 4
Sec = +/- [tex]\sqrt{5/4}[/tex]
Sec = + / - [tex]\sqrt{5}[/tex] / 2
Now how would I know if whether to put a negative sign or a positive sign before the answer?
Because the textbook says Sec Theta < 0 therefor they added the negative sign, only.
What does this mean?
How is Sec < 0 if it equals [tex]\sqrt{5}[/tex] / 2 ? This is not less than 0 so shouldn't we use a positive symbol?
Thanks