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How do you solve ##sin2x - 1 = 0## from [0,360]?...

How do you solve ##sin2x - 1 = 0## from [0,360]?

##x=45^@## ##sin2x-1=0## ##sin2x=1## ##sin2x=sin90^@## ##2x=90^@## ##x=45^@##

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