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Editing a true/false - math & science question by WIRIS
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<p></p> <p>Ecuatia «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»a«/mi»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«mi»b«/mi»«mi»x«/mi»«mo»+«/mo»«mi»c«/mi»«mo»=«/mo»«mn»0«/mn»«/math» nu are radacini reale.</p> <p>a=#a ; b=#b ; c=#c</p>
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<p>Raspuns corect !</p>
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<p>Gresit !</p> <p>1)Pentru «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»§#916;«/mi»«/math»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»§#8805;«/mo»«mn»0«/mn»«/math», ecuatia are radacini reale.</p> <p>2)Pentru «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»§#916;«/mi»«/math» < 0, ecuatia nu are radacini reale.</p>
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Monday, 12 August 2013, 9:05 AM
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