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  1. \(-\frac{\sqrt{338}}{\sqrt{2}}\)
  2. \(\sqrt{6}\cdot\sqrt{726}\)
  3. \(-\frac{\sqrt{4212}}{\sqrt{13}}\)
  4. \(-\frac{\sqrt{175}}{\sqrt{7}}\)
  5. \(\sqrt{2}\cdot\sqrt{242}\)
  6. \(\sqrt{3}\cdot\sqrt{147}\)
  7. \(-\sqrt{10}\cdot\sqrt{490}\)
  8. \(\sqrt{5}\cdot\sqrt{605}\)
  9. \(-\sqrt{2}\cdot\sqrt{18}\)
  10. \(-\frac{\sqrt{726}}{\sqrt{6}}\)
  11. \(\frac{\sqrt{1584}}{\sqrt{11}}\)
  12. \(\frac{\sqrt{2548}}{\sqrt{13}}\)

Reken uit

Verbetersleutel

  1. \(-\frac{\sqrt{338}}{\sqrt{2}}=-\sqrt{ \frac{338}{2}}=-\sqrt{ 169}=-13\)
  2. \(\sqrt{6}\cdot\sqrt{726}=\sqrt{6 \cdot 726}=\sqrt{6 \cdot 6 \cdot 121}=\sqrt{6 \cdot 6} \cdot \sqrt{121}=6\cdot11=66\)
  3. \(-\frac{\sqrt{4212}}{\sqrt{13}}=-\sqrt{ \frac{4212}{13}}=-\sqrt{ 324}=-18\)
  4. \(-\frac{\sqrt{175}}{\sqrt{7}}=-\sqrt{ \frac{175}{7}}=-\sqrt{ 25}=-5\)
  5. \(\sqrt{2}\cdot\sqrt{242}=\sqrt{2 \cdot 242}=\sqrt{2 \cdot 2 \cdot 121}=\sqrt{2 \cdot 2} \cdot \sqrt{121}=2\cdot11=22\)
  6. \(\sqrt{3}\cdot\sqrt{147}=\sqrt{3 \cdot 147}=\sqrt{3 \cdot 3 \cdot 49}=\sqrt{3 \cdot 3} \cdot \sqrt{49}=3\cdot7=21\)
  7. \(-\sqrt{10}\cdot\sqrt{490}=-\sqrt{10 \cdot 490}=-\sqrt{10 \cdot 10 \cdot 49}=-\sqrt{10 \cdot 10} \cdot \sqrt{49}=-10\cdot7=-70\)
  8. \(\sqrt{5}\cdot\sqrt{605}=\sqrt{5 \cdot 605}=\sqrt{5 \cdot 5 \cdot 121}=\sqrt{5 \cdot 5} \cdot \sqrt{121}=5\cdot11=55\)
  9. \(-\sqrt{2}\cdot\sqrt{18}=-\sqrt{2 \cdot 18}=-\sqrt{2 \cdot 2 \cdot 9}=-\sqrt{2 \cdot 2} \cdot \sqrt{9}=-2\cdot3=-6\)
  10. \(-\frac{\sqrt{726}}{\sqrt{6}}=-\sqrt{ \frac{726}{6}}=-\sqrt{ 121}=-11\)
  11. \(\frac{\sqrt{1584}}{\sqrt{11}}=\sqrt{ \frac{1584}{11}}=\sqrt{ 144}=12\)
  12. \(\frac{\sqrt{2548}}{\sqrt{13}}=\sqrt{ \frac{2548}{13}}=\sqrt{ 196}=14\)
Oefeningengenerator wiskundeoefeningen.be 2025-07-11 15:20:22
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