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Test-Lidia
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Calculeu:<br /> <span class="nolink">«math xmlns="http://www.w3.org/1998/Math/MathML"»«mi mathvariant="normal"»tan«/mi»«mfenced»«mi»x«/mi»«/mfenced»«mo»·«/mo»«mi mathvariant="normal"»tan«/mi»«mfenced»«mrow»«mfrac»«mi»§#960;«/mi»«mn»2«/mn»«/mfrac»«mo»+«/mo»«mi»x«/mi»«/mrow»«/mfenced»«mo»+«/mo»«mi mathvariant="normal"»tan«/mi»«mfenced»«mrow»«mi»§#960;«/mi»«mo»-«/mo»«mi»x«/mi»«/mrow»«/mfenced»«mo»+«/mo»«mi mathvariant="normal"»tan«/mi»«mfenced»«mi»x«/mi»«/mfenced»«mo»=«/mo»«/math»</span>{:SA:=-1}
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Monday, 12 August 2013, 9:04 AM
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Monday, 12 August 2013, 9:04 AM
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