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.

Question 191467: Solve AMP Parsing Error of [ (sec^2)theta = 4 ]: Invalid function ')theta=4': opening bracket expected at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 70. . 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(69443) (Show Source): You can put this solution on YOUR website!
Solve AMP Parsing Error of [ (sec^2)theta = 4 ]: Invalid function ')theta=4': opening bracket expected at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 70. . i tried sec^2 theta = tan^2 + 1 so tan^2 theta =3 but i do not know what to do from here on.
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AMP Parsing Error of [sec^2 = 4]: Invalid function '=4': opening bracket expected at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 70. .
sec = +2 ---> cos = 1/2
sec = -2 ---> cos = -1/2
theta = 60 degs, 300 degs
theta = 120 degs, 240 degs

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