SOLUTION: please help me to solve this equation : 3 ( SEC THETA

SOLUTION: please help me to solve this equation : 3 ( SEC THETA - TAN THETA)= 2 COS THETA

Question 1044255: please help me to solve this equation : 3 ( SEC THETA - TAN THETA)= 2 COS THETA

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
please help me to solve this equation : 3 ( SEC THETA - TAN THETA)= 2 COS THETA
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3(sec - tan) = 2cos
Multiply thru by cos
3(1 - sin) = 2cos^2 = 2(1 - sin^2)
2sin^2 - 3sin + 1 = 0
(2sin - 1)*(sin - 1) = 0
sine = 1
sine = 1/2
etc
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sine = 1 is rejected --> sec and tan undefined.
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