<div id="ccc"> <ol>
<li> On a, en zéro, 
<div class="wimscenter">\( \sin x = o(\sqrt{x}), \quad x = o(\frac{1}{\ln x}).\)  
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</li><li>
On a, à l'infini,
<div class="wimscenter"> \( x^3 + x^2 -3 = o(x^4 -5), \quad \ln (x^2+1) = o(x).\)  
</div> </li></ol> 
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