log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0{,}32\)
2. \(\log x = -0{,}39\)
3. \(\log x = -0{,}35\)
4. \(\log x = 0{,}28\)
5. \(\log x = 1{,}3\)
6. \(\log x = 1{,}7\)
7. \(\log x = 2\)
8. \(\log x = 0{,}6\)
9. \(\log x = -0{,}16\)
10. \(\log x = -2{,}2\)
11. \(\log x = -0{,}29\)
12. \(\log x = 2{,}2\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -0{,}32\\ \Leftrightarrow x = 10^{-0{,}32} \\ \Leftrightarrow x \approx 0{,}47863009232264\)
2. \(\log x = -0{,}39\\ \Leftrightarrow x = 10^{-0{,}39} \\ \Leftrightarrow x \approx 0{,}40738027780411\)
3. \(\log x = -0{,}35\\ \Leftrightarrow x = 10^{-0{,}35} \\ \Leftrightarrow x \approx 0{,}44668359215096\)
4. \(\log x = 0{,}28\\ \Leftrightarrow x = 10^{0{,}28} \\ \Leftrightarrow x \approx 1{,}9054607179632\)
5. \(\log x = 1{,}3\\ \Leftrightarrow x = 10^{1{,}3} \\ \Leftrightarrow x \approx 19{,}952623149689\)
6. \(\log x = 1{,}7\\ \Leftrightarrow x = 10^{1{,}7} \\ \Leftrightarrow x \approx 50{,}118723362727\)
7. \(\log x = 2\\ \Leftrightarrow x = 10^{2} \\ \Leftrightarrow x =100\)
8. \(\log x = 0{,}6\\ \Leftrightarrow x = 10^{0{,}6} \\ \Leftrightarrow x \approx 3{,}981071705535\)
9. \(\log x = -0{,}16\\ \Leftrightarrow x = 10^{-0{,}16} \\ \Leftrightarrow x \approx 0{,}69183097091894\)
10. \(\log x = -2{,}2\\ \Leftrightarrow x = 10^{-2{,}2} \\ \Leftrightarrow x \approx 0{,}0063095734448019\)
11. \(\log x = -0{,}29\\ \Leftrightarrow x = 10^{-0{,}29} \\ \Leftrightarrow x \approx 0{,}51286138399136\)
12. \(\log x = 2{,}2\\ \Leftrightarrow x = 10^{2{,}2} \\ \Leftrightarrow x \approx 158{,}48931924611\)