Pre-calc questions, please help?

K

Keri M

New member
Solve the following equations given that 0 </= x < 2pi

1. 2 cos^2 x + cos x - 1 = 0

2. 1 - sqr. 3 tan 2x = 0

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1 - cos 2x/ sec x sin 2x = sin x
 
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