log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 2,2\)
2. \(\log x = -0,25\)
3. \(\log x = -0,04\)
4. \(\log x = 0,36\)
5. \(\log x = -3,1\)
6. \(\log x = -0,08\)
7. \(\log x = -3,6\)
8. \(\log x = -1,6\)
9. \(\log x = -0,3\)
10. \(\log x = -2,4\)
11. \(\log x = 0,32\)
12. \(\log x = -2,1\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 2,2\\ \Leftrightarrow x = 10^{2,2} \\ \Leftrightarrow x \approx 158,48931924611\)
2. \(\log x = -0,25\\ \Leftrightarrow x = 10^{-0,25} \\ \Leftrightarrow x \approx 0,56234132519035\)
3. \(\log x = -0,04\\ \Leftrightarrow x = 10^{-0,04} \\ \Leftrightarrow x \approx 0,91201083935591\)
4. \(\log x = 0,36\\ \Leftrightarrow x = 10^{0,36} \\ \Leftrightarrow x \approx 2,2908676527678\)
5. \(\log x = -3,1\\ \Leftrightarrow x = 10^{-3,1} \\ \Leftrightarrow x \approx 0,00079432823472428\)
6. \(\log x = -0,08\\ \Leftrightarrow x = 10^{-0,08} \\ \Leftrightarrow x \approx 0,83176377110267\)
7. \(\log x = -3,6\\ \Leftrightarrow x = 10^{-3,6} \\ \Leftrightarrow x \approx 0,00025118864315096\)
8. \(\log x = -1,6\\ \Leftrightarrow x = 10^{-1,6} \\ \Leftrightarrow x \approx 0,025118864315096\)
9. \(\log x = -0,3\\ \Leftrightarrow x = 10^{-0,3} \\ \Leftrightarrow x \approx 0,50118723362727\)
10. \(\log x = -2,4\\ \Leftrightarrow x = 10^{-2,4} \\ \Leftrightarrow x \approx 0,003981071705535\)
11. \(\log x = 0,32\\ \Leftrightarrow x = 10^{0,32} \\ \Leftrightarrow x \approx 2,089296130854\)
12. \(\log x = -2,1\\ \Leftrightarrow x = 10^{-2,1} \\ \Leftrightarrow x \approx 0,0079432823472428\)