3. Dans le Doc.3, identifier les réactifs et les produits de la réaction de l'arbre de Diane. 4. A l'aide des demi-équations données, identifier les deux couples Ox/Red mis en jeu dans le Doc. 3 5. Écrire l'équation de la réaction d'oxydoréduction de l'arbre de Diane.

If \( \frac{1}{\sqrt{m}+\sqrt{m+1}}=\sqrt{m+1}-\sqrt{m} \), determine, without the use of a calculator, the exact value of: \( \frac{1}{\sqrt{4}+\sqrt{5}}+\frac{1}{\sqrt{5}+\sqrt{6}}+\frac{1}{\sqrt{6}+\sqrt{7}}+\ldots+\frac{1}{\sqrt{1680}+\sqrt{1681}} \)

Resolve into Parth - Faltions

19 of 20 Clara is going to businesses to ask for job applications in person. According to the presentation, how should she dress? Professionally Formally Normally

Орлуулах аргаар бб а. \( \left\{\begin{array}{c}x^{2}+x y-y^{2}=11 \\ x-2 y=1\end{array}\right. \) а Хоёп тооны ний

\begin{tabular}{l} Select all of the following which describe the physical development of three-year-olds. \\ \( \begin{array}{l}\text { Crawling } \\ \text { Continuing to have temper tantrums } \\ \text { Growing slow and steady } \\ \text { Hopping on one foot } \\ \text { Playing with play dough } \\ \text { Walking up and down stairs } \\ \text { Walking with help }\end{array} \) \\ \hline\end{tabular}