<p>4. En utilisant la courbe représentative de la fonction sinus, compléter son tableau de variations.</p>
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<h3 class="math" style="position: absolute; top: 50px; left: 130px;"><em><strong>0                              </strong></em><em><strong>\(\pi/2 \)                      </strong></em><em style="font-size: 1.75rem;"><span style="font-weight: bolder;">\(3 \pi/2 \)                </span></em><em style="font-size: 1.75rem;"><span style="font-weight: bolder;">\(2 \pi \)</span></em></h3>
<h3 class="math" style="position: absolute; top: 50px; left: 850px;"><em><strong> </strong></em></h3>
<h3 class="math" style="position: absolute; top: 130px; left: 20px;"><em><strong>sin(x) </strong></em><em><strong>{_0} </strong></em><em><strong>{_1:fleche1} </strong></em><em><strong>{_2} </strong></em><em><strong>{_3:fleche2} </strong></em><em><strong>{_4} </strong></em><em><strong>{_5:fleche1} </strong></em><em><strong>{_6} </strong></em></h3>
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<h3 class="math" style="position: absolute; top: 180px; left: 480px;"><em><strong> </strong></em></h3>
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<h3 class="math" style="position: absolute; top: 50px; left: 130px;"><em><span style="font-weight: bolder;"> </span></em><em style="font-size: 1.75rem;"><span style="font-weight: bolder;"><br /></span></em></h3>