# SOLUTION: Solve {{{ (sec^2)theta = 4 }}} i tried sec^2 theta = tan^2 + 1 so tan^2 theta =3 but i do not know what to do from here on.

Algebra ->  Algebra  -> Trigonometry-basics -> SOLUTION: Solve {{{ (sec^2)theta = 4 }}} i tried sec^2 theta = tan^2 + 1 so tan^2 theta =3 but i do not know what to do from here on.      Log On

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 Algebra: Trigonometry Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Trigonometry-basics Question 191467: Solve i tried sec^2 theta = tan^2 + 1 so tan^2 theta =3 but i do not know what to do from here on.Answer by Alan3354(30993)   (Show Source): You can put this solution on YOUR website!Solve i tried sec^2 theta = tan^2 + 1 so tan^2 theta =3 but i do not know what to do from here on. ------------------------- sec = +2 ---> cos = 1/2 sec = -2 ---> cos = -1/2 theta = 60 degs, 300 degs theta = 120 degs, 240 degs