if 0 is less than or equal to theta less than 360 solve sec^2 (theta)+2sec(2 theta)=0
ANy last min help??? ITs wrong and the answer wasnt -1/2

Question

if 0 is less than or equal to theta less than 360 solve sec^2 (theta)+2sec(2 theta)=0 
ANy last min help??? ITs wrong and the answer wasnt -1/2

anonymous · Answer

@Loser66

anonymous · Answer

@Loser66 this is what i got

anonymous · Answer

@Loser66 Apparently we have to factor this thing out and I don't know how to

trojanpoem · Answer

significantly , it's typo from him. Check the question the first was also 2theta

trojanpoem · Answer

Take sec(2theta) as common factor 
sec(2theta)(sec(2theta)+2) = 0
either sec(2theta) = 0    or sec(2theta)+2 = 0

trojanpoem · Answer

and continue it, don't neglect the restriction "0 is less than or equal to theta less than 360"

anonymous · Answer

I think I got it! pi/3 and 4pi/3

trojanpoem · Answer

Loser66, sec(2theta) = 0 is refused.

trojanpoem · Answer

sec is never equal to 0

trojanpoem · Answer

Cosine is never undefined so sec 0 is refused

trojanpoem · Answer

@Loser66 , You are right.But , The longer the answer is, the higher chance of mistaken. By the way , nice ^^.