Explications étape par étape:
1)
7²=49
9²=81
1²=1
8²=64
2)
10²=100
6²=36
12²=144
4²=16
3)
[tex] \sqrt{121} = 11 \\ \sqrt{25 } = 5 \\ \sqrt{4} = 2 \\ \sqrt{169} = 13[/tex]
4)
[tex] \sqrt{9} = 3 \\ \sqrt{36} = 6 \\ \sqrt{16 } = 4 \\ \sqrt{144} = 12[/tex]
5)
[tex] \sqrt{0.81} = 0.9 \\ \sqrt{1.21} = 1.1 \\ \sqrt{2.25} = 1.5 \\ \sqrt{12.96} = 3.6 \\ \sqrt{289} = 17 \\ \sqrt{4774.81} = 69.1 \\ \sqrt{9604} = 98 \\ \sqrt{40000} = 200[/tex]
0.4²=0.16
1.6²=2.56
2.25²=5.0625
14²=196
19²=361
30.9²=954.81
42.7²=1823.29
101²=10201
6)
[tex] \sqrt{0.6} = 0.24 \\ \sqrt{1.11} = 1.05 \\ \sqrt{3.4} = 1.84 \\ \sqrt{8} = 2.82 \\ \sqrt{15} = 3.87 \\ \sqrt{28.86} = 5.37 \\ \sqrt{130.8} = 11.43[/tex]
Dans l'exercice 6 , la valeur n'est pas exacte
