log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0{,}09\)
2. \(\log x = 0{,}9\)
3. \(\log x = 0{,}18\)
4. \(\log x = -2{,}6\)
5. \(\log x = 1{,}6\)
6. \(\log x = 0{,}21\)
7. \(\log x = -2\)
8. \(\log x = -0{,}2\)
9. \(\log x = -0{,}17\)
10. \(\log x = -1{,}7\)
11. \(\log x = 0{,}39\)
12. \(\log x = -0{,}39\)

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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. \(\log x = 0{,}9\\ \Leftrightarrow x = 10^{0{,}9} \\ \Leftrightarrow x \approx 7{,}9432823472428\)
3. \(\log x = 0{,}18\\ \Leftrightarrow x = 10^{0{,}18} \\ \Leftrightarrow x \approx 1{,}5135612484362\)
4. \(\log x = -2{,}6\\ \Leftrightarrow x = 10^{-2{,}6} \\ \Leftrightarrow x \approx 0{,}0025118864315096\)
5. \(\log x = 1{,}6\\ \Leftrightarrow x = 10^{1{,}6} \\ \Leftrightarrow x \approx 39{,}81071705535\)
6. \(\log x = 0{,}21\\ \Leftrightarrow x = 10^{0{,}21} \\ \Leftrightarrow x \approx 1{,}6218100973589\)
7. \(\log x = -2\\ \Leftrightarrow x = 10^{-2} \\ \Leftrightarrow x =0.01\)
8. \(\log x = -0{,}2\\ \Leftrightarrow x = 10^{-0{,}2} \\ \Leftrightarrow x \approx 0{,}63095734448019\)
9. \(\log x = -0{,}17\\ \Leftrightarrow x = 10^{-0{,}17} \\ \Leftrightarrow x \approx 0{,}67608297539198\)
10. \(\log x = -1{,}7\\ \Leftrightarrow x = 10^{-1{,}7} \\ \Leftrightarrow x \approx 0{,}019952623149689\)
11. \(\log x = 0{,}39\\ \Leftrightarrow x = 10^{0{,}39} \\ \Leftrightarrow x \approx 2{,}454708915685\)
12. \(\log x = -0{,}39\\ \Leftrightarrow x = 10^{-0{,}39} \\ \Leftrightarrow x \approx 0{,}40738027780411\)