4. Solve each of the following trigonometric equations, giving exact values where possible or rounding to 2 decimal places if necessary: a) 2sin 0-1=0 for xe[0.27] MHF 4U0 b sec(3x)=2.75 for x e[0,27]. c) 2sin 0+9sin 6-5=0for xe[0,27]

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