log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0,09\)
2. \(\log x = 0,22\)
3. \(\log x = -3,4\)
4. \(\log x = 0,17\)
5. \(\log x = 0,4\)
6. \(\log x = -1,4\)
7. \(\log x = 0,28\)
8. \(\log x = 0,9\)
9. \(\log x = -1,2\)
10. \(\log x = 1,2\)
11. \(\log x = 3,6\)
12. \(\log x = -0,16\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -0,09\\ \Leftrightarrow x = 10^{-0,09} \\ \Leftrightarrow x \approx 0,8128305161641\)
2. \(\log x = 0,22\\ \Leftrightarrow x = 10^{0,22} \\ \Leftrightarrow x \approx 1,6595869074376\)
3. \(\log x = -3,4\\ \Leftrightarrow x = 10^{-3,4} \\ \Leftrightarrow x \approx 0,0003981071705535\)
4. \(\log x = 0,17\\ \Leftrightarrow x = 10^{0,17} \\ \Leftrightarrow x \approx 1,4791083881682\)
5. \(\log x = 0,4\\ \Leftrightarrow x = 10^{0,4} \\ \Leftrightarrow x \approx 2,5118864315096\)
6. \(\log x = -1,4\\ \Leftrightarrow x = 10^{-1,4} \\ \Leftrightarrow x \approx 0,03981071705535\)
7. \(\log x = 0,28\\ \Leftrightarrow x = 10^{0,28} \\ \Leftrightarrow x \approx 1,9054607179632\)
8. \(\log x = 0,9\\ \Leftrightarrow x = 10^{0,9} \\ \Leftrightarrow x \approx 7,9432823472428\)
9. \(\log x = -1,2\\ \Leftrightarrow x = 10^{-1,2} \\ \Leftrightarrow x \approx 0,063095734448019\)
10. \(\log x = 1,2\\ \Leftrightarrow x = 10^{1,2} \\ \Leftrightarrow x \approx 15,848931924611\)
11. \(\log x = 3,6\\ \Leftrightarrow x = 10^{3,6} \\ \Leftrightarrow x \approx 3981,071705535\)
12. \(\log x = -0,16\\ \Leftrightarrow x = 10^{-0,16} \\ \Leftrightarrow x \approx 0,69183097091894\)