Question 1117292
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<pre>
{{{sin(5pi/12)}}} = sin(75°) = sin(45°+30°) = sin(45°)*cos(30°) + cos(45°)*sin(30°) = {{{(sqrt(2)/2)*(sqrt(3)/2) + (sqrt(2)/2)*(1/2)}}} = {{{(sqrt(6) + sqrt(2))/4}}}.
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