log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 1,7\)
2. \(\log x = -0,7\)
3. \(\log x = -2,4\)
4. \(\log x = -0,27\)
5. \(\log x = 0,08\)
6. \(\log x = -0,32\)
7. \(\log x = -3,3\)
8. \(\log x = -0,12\)
9. \(\log x = -0,5\)
10. \(\log x = 2\)
11. \(\log x = 0,22\)
12. \(\log x = 3,5\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 1,7\\ \Leftrightarrow x = 10^{1,7} \\ \Leftrightarrow x \approx 50,118723362727\)
2. \(\log x = -0,7\\ \Leftrightarrow x = 10^{-0,7} \\ \Leftrightarrow x \approx 0,19952623149689\)
3. \(\log x = -2,4\\ \Leftrightarrow x = 10^{-2,4} \\ \Leftrightarrow x \approx 0,003981071705535\)
4. \(\log x = -0,27\\ \Leftrightarrow x = 10^{-0,27} \\ \Leftrightarrow x \approx 0,53703179637025\)
5. \(\log x = 0,08\\ \Leftrightarrow x = 10^{0,08} \\ \Leftrightarrow x \approx 1,2022644346174\)
6. \(\log x = -0,32\\ \Leftrightarrow x = 10^{-0,32} \\ \Leftrightarrow x \approx 0,47863009232264\)
7. \(\log x = -3,3\\ \Leftrightarrow x = 10^{-3,3} \\ \Leftrightarrow x \approx 0,00050118723362727\)
8. \(\log x = -0,12\\ \Leftrightarrow x = 10^{-0,12} \\ \Leftrightarrow x \approx 0,75857757502918\)
9. \(\log x = -0,5\\ \Leftrightarrow x = 10^{-0,5} \\ \Leftrightarrow x \approx 0,31622776601684\)
10. \(\log x = 2\\ \Leftrightarrow x = 10^{2} \\ \Leftrightarrow x =100\)
11. \(\log x = 0,22\\ \Leftrightarrow x = 10^{0,22} \\ \Leftrightarrow x \approx 1,6595869074376\)
12. \(\log x = 3,5\\ \Leftrightarrow x = 10^{3,5} \\ \Leftrightarrow x \approx 3162,2776601684\)