log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 3{,}6\)
2. \(\log x = -0{,}11\)
3. \(\log x = 0{,}35\)
4. \(\log x = -2{,}2\)
5. \(\log x = 0{,}25\)
6. \(\log x = -2{,}5\)
7. \(\log x = -0{,}36\)
8. \(\log x = -0{,}4\)
9. \(\log x = 1{,}5\)
10. \(\log x = 0{,}02\)
11. \(\log x = 1{,}8\)
12. \(\log x = 0{,}2\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 3{,}6\\ \Leftrightarrow x = 10^{3{,}6} \\ \Leftrightarrow x \approx 3981{,}071705535\)
2. \(\log x = -0{,}11\\ \Leftrightarrow x = 10^{-0{,}11} \\ \Leftrightarrow x \approx 0{,}77624711662869\)
3. \(\log x = 0{,}35\\ \Leftrightarrow x = 10^{0{,}35} \\ \Leftrightarrow x \approx 2{,}2387211385683\)
4. \(\log x = -2{,}2\\ \Leftrightarrow x = 10^{-2{,}2} \\ \Leftrightarrow x \approx 0{,}0063095734448019\)
5. \(\log x = 0{,}25\\ \Leftrightarrow x = 10^{0{,}25} \\ \Leftrightarrow x \approx 1{,}7782794100389\)
6. \(\log x = -2{,}5\\ \Leftrightarrow x = 10^{-2{,}5} \\ \Leftrightarrow x \approx 0{,}0031622776601684\)
7. \(\log x = -0{,}36\\ \Leftrightarrow x = 10^{-0{,}36} \\ \Leftrightarrow x \approx 0{,}43651583224017\)
8. \(\log x = -0{,}4\\ \Leftrightarrow x = 10^{-0{,}4} \\ \Leftrightarrow x \approx 0{,}3981071705535\)
9. \(\log x = 1{,}5\\ \Leftrightarrow x = 10^{1{,}5} \\ \Leftrightarrow x \approx 31{,}622776601684\)
10. \(\log x = 0{,}02\\ \Leftrightarrow x = 10^{0{,}02} \\ \Leftrightarrow x \approx 1{,}0471285480509\)
11. \(\log x = 1{,}8\\ \Leftrightarrow x = 10^{1{,}8} \\ \Leftrightarrow x \approx 63{,}095734448019\)
12. \(\log x = 0{,}2\\ \Leftrightarrow x = 10^{0{,}2} \\ \Leftrightarrow x \approx 1{,}5848931924611\)