Pre-calc help: find all solutions of the equation in the interval [0, 2pi]?

lmao

New member
Hello :) I have two questions like this and I don't understand how to do them. If you could show me how to do one of them I can probably get the other one. Thanks!

1. 2sec^2(x/2)-3sec(x/2)-2=0

2. tan^2(x)=3/2sec(x)
 
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