log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0,16\)
2. \(\log x = -2,5\)
3. \(\log x = 3,8\)
4. \(\log x = -2,4\)
5. \(\log x = -0,03\)
6. \(\log x = 0,38\)
7. \(\log x = -0,21\)
8. \(\log x = -1,6\)
9. \(\log x = -0,22\)
10. \(\log x = -2,1\)
11. \(\log x = -0,38\)
12. \(\log x = 0,3\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -0,16\\ \Leftrightarrow x = 10^{-0,16} \\ \Leftrightarrow x \approx 0,69183097091894\)
2. \(\log x = -2,5\\ \Leftrightarrow x = 10^{-2,5} \\ \Leftrightarrow x \approx 0,0031622776601684\)
3. \(\log x = 3,8\\ \Leftrightarrow x = 10^{3,8} \\ \Leftrightarrow x \approx 6309,5734448019\)
4. \(\log x = -2,4\\ \Leftrightarrow x = 10^{-2,4} \\ \Leftrightarrow x \approx 0,003981071705535\)
5. \(\log x = -0,03\\ \Leftrightarrow x = 10^{-0,03} \\ \Leftrightarrow x \approx 0,93325430079699\)
6. \(\log x = 0,38\\ \Leftrightarrow x = 10^{0,38} \\ \Leftrightarrow x \approx 2,3988329190195\)
7. \(\log x = -0,21\\ \Leftrightarrow x = 10^{-0,21} \\ \Leftrightarrow x \approx 0,61659500186148\)
8. \(\log x = -1,6\\ \Leftrightarrow x = 10^{-1,6} \\ \Leftrightarrow x \approx 0,025118864315096\)
9. \(\log x = -0,22\\ \Leftrightarrow x = 10^{-0,22} \\ \Leftrightarrow x \approx 0,60255958607436\)
10. \(\log x = -2,1\\ \Leftrightarrow x = 10^{-2,1} \\ \Leftrightarrow x \approx 0,0079432823472428\)
11. \(\log x = -0,38\\ \Leftrightarrow x = 10^{-0,38} \\ \Leftrightarrow x \approx 0,41686938347034\)
12. \(\log x = 0,3\\ \Leftrightarrow x = 10^{0,3} \\ \Leftrightarrow x \approx 1,9952623149689\)