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OpenStudy (anonymous):
tan^2(x)-sec(x)=1 find x?
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OpenStudy (anonymous):
convert tan^2 to sec^2 and solve the equation for sec(x)
OpenStudy (anonymous):
use the identity of tan^2 (x) = sec^2 (x) - 1 then move the 1 over to give yourself sec2 x - sec x -1 and then use quadratic to find x values.
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