pre-calc trigonometry help?

Jackie

New member
Find all solutions of the equation (sec x)^2 - 2 = 0.
The answer is A+B k? where k is any integer and 0 < A < ?/2
A= ? B=?

i found A=?/4 and B=1, or B=2 but i believe B is incorrect, and i'm not sure why.
any help would be appreciated :)
 
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