log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 0{,}18\)
2. \(\log x = 0{,}36\)
3. \(\log x = 2{,}9\)
4. \(\log x = 0{,}8\)
5. \(\log x = -3{,}4\)
6. \(\log x = -0{,}16\)
7. \(\log x = -0{,}2\)
8. \(\log x = 0{,}6\)
9. \(\log x = -0{,}3\)
10. \(\log x = -0{,}1\)
11. \(\log x = -2\)
12. \(\log x = 0{,}17\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 0{,}18\\ \Leftrightarrow x = 10^{0{,}18} \\ \Leftrightarrow x \approx 1{,}5135612484362\)
2. \(\log x = 0{,}36\\ \Leftrightarrow x = 10^{0{,}36} \\ \Leftrightarrow x \approx 2{,}2908676527678\)
3. \(\log x = 2{,}9\\ \Leftrightarrow x = 10^{2{,}9} \\ \Leftrightarrow x \approx 794{,}32823472428\)
4. \(\log x = 0{,}8\\ \Leftrightarrow x = 10^{0{,}8} \\ \Leftrightarrow x \approx 6{,}3095734448019\)
5. \(\log x = -3{,}4\\ \Leftrightarrow x = 10^{-3{,}4} \\ \Leftrightarrow x \approx 0{,}0003981071705535\)
6. \(\log x = -0{,}16\\ \Leftrightarrow x = 10^{-0{,}16} \\ \Leftrightarrow x \approx 0{,}69183097091894\)
7. \(\log x = -0{,}2\\ \Leftrightarrow x = 10^{-0{,}2} \\ \Leftrightarrow x \approx 0{,}63095734448019\)
8. \(\log x = 0{,}6\\ \Leftrightarrow x = 10^{0{,}6} \\ \Leftrightarrow x \approx 3{,}981071705535\)
9. \(\log x = -0{,}3\\ \Leftrightarrow x = 10^{-0{,}3} \\ \Leftrightarrow x \approx 0{,}50118723362727\)
10. \(\log x = -0{,}1\\ \Leftrightarrow x = 10^{-0{,}1} \\ \Leftrightarrow x \approx 0{,}79432823472428\)
11. \(\log x = -2\\ \Leftrightarrow x = 10^{-2} \\ \Leftrightarrow x =0.01\)
12. \(\log x = 0{,}17\\ \Leftrightarrow x = 10^{0{,}17} \\ \Leftrightarrow x \approx 1{,}4791083881682\)