log10 met rekenmachien

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Bepaal x met ZRM

  1. \(\log x = -0,38\)
  2. \(\log x = -1,2\)
  3. \(\log x = 3,1\)
  4. \(\log x = -0,34\)
  5. \(\log x = -2\)
  6. \(\log x = -3,4\)
  7. \(\log x = 0,02\)
  8. \(\log x = -0,12\)
  9. \(\log x = 2,2\)
  10. \(\log x = 3,2\)
  11. \(\log x = -0,15\)
  12. \(\log x = 0,8\)

Bepaal x met ZRM

Verbetersleutel

  1. \(\log x = -0,38\\ \Leftrightarrow x = 10^{-0,38} \\ \Leftrightarrow x \approx 0,41686938347034\)
  2. \(\log x = -1,2\\ \Leftrightarrow x = 10^{-1,2} \\ \Leftrightarrow x \approx 0,063095734448019\)
  3. \(\log x = 3,1\\ \Leftrightarrow x = 10^{3,1} \\ \Leftrightarrow x \approx 1258,9254117942\)
  4. \(\log x = -0,34\\ \Leftrightarrow x = 10^{-0,34} \\ \Leftrightarrow x \approx 0,45708818961488\)
  5. \(\log x = -2\\ \Leftrightarrow x = 10^{-2} \\ \Leftrightarrow x =0.01\)
  6. \(\log x = -3,4\\ \Leftrightarrow x = 10^{-3,4} \\ \Leftrightarrow x \approx 0,0003981071705535\)
  7. \(\log x = 0,02\\ \Leftrightarrow x = 10^{0,02} \\ \Leftrightarrow x \approx 1,0471285480509\)
  8. \(\log x = -0,12\\ \Leftrightarrow x = 10^{-0,12} \\ \Leftrightarrow x \approx 0,75857757502918\)
  9. \(\log x = 2,2\\ \Leftrightarrow x = 10^{2,2} \\ \Leftrightarrow x \approx 158,48931924611\)
  10. \(\log x = 3,2\\ \Leftrightarrow x = 10^{3,2} \\ \Leftrightarrow x \approx 1584,8931924611\)
  11. \(\log x = -0,15\\ \Leftrightarrow x = 10^{-0,15} \\ \Leftrightarrow x \approx 0,70794578438414\)
  12. \(\log x = 0,8\\ \Leftrightarrow x = 10^{0,8} \\ \Leftrightarrow x \approx 6,3095734448019\)
Oefeningengenerator vanhoeckes.be/wiskunde 2021-12-02 00:55:36