log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0,7\)
2. \(\log x = 0,31\)
3. \(\log x = 0,35\)
4. \(\log x = 3,6\)
5. \(\log x = 0,27\)
6. \(\log x = -0,34\)
7. \(\log x = -0,27\)
8. \(\log x = -1,8\)
9. \(\log x = 0,26\)
10. \(\log x = -0,12\)
11. \(\log x = -0,6\)
12. \(\log x = 2,9\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -0,7\\ \Leftrightarrow x = 10^{-0,7} \\ \Leftrightarrow x \approx 0,19952623149689\)
2. \(\log x = 0,31\\ \Leftrightarrow x = 10^{0,31} \\ \Leftrightarrow x \approx 2,0417379446695\)
3. \(\log x = 0,35\\ \Leftrightarrow x = 10^{0,35} \\ \Leftrightarrow x \approx 2,2387211385683\)
4. \(\log x = 3,6\\ \Leftrightarrow x = 10^{3,6} \\ \Leftrightarrow x \approx 3981,071705535\)
5. \(\log x = 0,27\\ \Leftrightarrow x = 10^{0,27} \\ \Leftrightarrow x \approx 1,8620871366629\)
6. \(\log x = -0,34\\ \Leftrightarrow x = 10^{-0,34} \\ \Leftrightarrow x \approx 0,45708818961488\)
7. \(\log x = -0,27\\ \Leftrightarrow x = 10^{-0,27} \\ \Leftrightarrow x \approx 0,53703179637025\)
8. \(\log x = -1,8\\ \Leftrightarrow x = 10^{-1,8} \\ \Leftrightarrow x \approx 0,015848931924611\)
9. \(\log x = 0,26\\ \Leftrightarrow x = 10^{0,26} \\ \Leftrightarrow x \approx 1,81970085861\)
10. \(\log x = -0,12\\ \Leftrightarrow x = 10^{-0,12} \\ \Leftrightarrow x \approx 0,75857757502918\)
11. \(\log x = -0,6\\ \Leftrightarrow x = 10^{-0,6} \\ \Leftrightarrow x \approx 0,25118864315096\)
12. \(\log x = 2,9\\ \Leftrightarrow x = 10^{2,9} \\ \Leftrightarrow x \approx 794,32823472428\)