log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -0{,}8\)
2. \(\log x = 1{,}5\)
3. \(\log x = -0{,}27\)
4. \(\log x = 2{,}7\)
5. \(\log x = -0{,}37\)
6. \(\log x = 0{,}36\)
7. \(\log x = 2{,}2\)
8. \(\log x = -1{,}9\)
9. \(\log x = -0{,}16\)
10. \(\log x = -1{,}8\)
11. \(\log x = 1{,}9\)
12. \(\log x = -0{,}33\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -0{,}8\\ \Leftrightarrow x = 10^{-0{,}8} \\ \Leftrightarrow x \approx 0{,}15848931924611\)
2. \(\log x = 1{,}5\\ \Leftrightarrow x = 10^{1{,}5} \\ \Leftrightarrow x \approx 31{,}622776601684\)
3. \(\log x = -0{,}27\\ \Leftrightarrow x = 10^{-0{,}27} \\ \Leftrightarrow x \approx 0{,}53703179637025\)
4. \(\log x = 2{,}7\\ \Leftrightarrow x = 10^{2{,}7} \\ \Leftrightarrow x \approx 501{,}18723362727\)
5. \(\log x = -0{,}37\\ \Leftrightarrow x = 10^{-0{,}37} \\ \Leftrightarrow x \approx 0{,}42657951880159\)
6. \(\log x = 0{,}36\\ \Leftrightarrow x = 10^{0{,}36} \\ \Leftrightarrow x \approx 2{,}2908676527678\)
7. \(\log x = 2{,}2\\ \Leftrightarrow x = 10^{2{,}2} \\ \Leftrightarrow x \approx 158{,}48931924611\)
8. \(\log x = -1{,}9\\ \Leftrightarrow x = 10^{-1{,}9} \\ \Leftrightarrow x \approx 0{,}012589254117942\)
9. \(\log x = -0{,}16\\ \Leftrightarrow x = 10^{-0{,}16} \\ \Leftrightarrow x \approx 0{,}69183097091894\)
10. \(\log x = -1{,}8\\ \Leftrightarrow x = 10^{-1{,}8} \\ \Leftrightarrow x \approx 0{,}015848931924611\)
11. \(\log x = 1{,}9\\ \Leftrightarrow x = 10^{1{,}9} \\ \Leftrightarrow x \approx 79{,}432823472428\)
12. \(\log x = -0{,}33\\ \Leftrightarrow x = 10^{-0{,}33} \\ \Leftrightarrow x \approx 0{,}4677351412872\)