Homework Help: trig

Posted by Courtney on Wednesday, May 12, 2010 at 12:07pm.

For the given equation, solve for all values of (theta) to the nearest tenth of a degree. 2secant(theta)+10=0

trig - Reiny, Wednesday, May 12, 2010 at 1:24pm
2sec(theta) = -10
sec(theta) = -5
cos(theta) = - .2

take it from there

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