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Solve the following trigonometric equations. 1. 2sin x +3cosx-3=0 3. sec x -2 tan x = 4 2. 2sin x - sinx-1=0 4. cotxcos x

Solve the following trigonometric equations. 1. 2sin x +3cosx-3=0 3. sec x -2 tan x = 4 2. 2sin x - sinx-1=0 4. cotxcos x =2cotx

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