log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0{,}32\)
2. \(\log x = -0{,}21\)
3. \(\log x = -2{,}3\)
4. \(\log x = -3{,}9\)
5. \(\log x = 2{,}8\)
6. \(\log x = -3{,}2\)
7. \(\log x = 0{,}39\)
8. \(\log x = 1\)
9. \(\log x = 0{,}22\)
10. \(\log x = 1{,}4\)
11. \(\log x = 0{,}35\)
12. \(\log x = 0{,}06\)

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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. \(\log x = -0{,}21\\ \Leftrightarrow x = 10^{-0{,}21} \\ \Leftrightarrow x \approx 0{,}61659500186148\)
3. \(\log x = -2{,}3\\ \Leftrightarrow x = 10^{-2{,}3} \\ \Leftrightarrow x \approx 0{,}0050118723362727\)
4. \(\log x = -3{,}9\\ \Leftrightarrow x = 10^{-3{,}9} \\ \Leftrightarrow x \approx 0{,}00012589254117942\)
5. \(\log x = 2{,}8\\ \Leftrightarrow x = 10^{2{,}8} \\ \Leftrightarrow x \approx 630{,}95734448019\)
6. \(\log x = -3{,}2\\ \Leftrightarrow x = 10^{-3{,}2} \\ \Leftrightarrow x \approx 0{,}00063095734448019\)
7. \(\log x = 0{,}39\\ \Leftrightarrow x = 10^{0{,}39} \\ \Leftrightarrow x \approx 2{,}454708915685\)
8. \(\log x = 1\\ \Leftrightarrow x = 10^{1} \\ \Leftrightarrow x =10\)
9. \(\log x = 0{,}22\\ \Leftrightarrow x = 10^{0{,}22} \\ \Leftrightarrow x \approx 1{,}6595869074376\)
10. \(\log x = 1{,}4\\ \Leftrightarrow x = 10^{1{,}4} \\ \Leftrightarrow x \approx 25{,}118864315096\)
11. \(\log x = 0{,}35\\ \Leftrightarrow x = 10^{0{,}35} \\ \Leftrightarrow x \approx 2{,}2387211385683\)
12. \(\log x = 0{,}06\\ \Leftrightarrow x = 10^{0{,}06} \\ \Leftrightarrow x \approx 1{,}1481536214969\)