log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 0{,}05\)
2. \(\log x = 3{,}3\)
3. \(\log x = 1{,}6\)
4. \(\log x = -0{,}29\)
5. \(\log x = 0{,}9\)
6. \(\log x = -0{,}03\)
7. \(\log x = -0{,}24\)
8. \(\log x = 0{,}24\)
9. \(\log x = 3\)
10. \(\log x = 0{,}06\)
11. \(\log x = -0{,}31\)
12. \(\log x = 0{,}27\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 0{,}05\\ \Leftrightarrow x = 10^{0{,}05} \\ \Leftrightarrow x \approx 1{,}122018454302\)
2. \(\log x = 3{,}3\\ \Leftrightarrow x = 10^{3{,}3} \\ \Leftrightarrow x \approx 1995{,}2623149689\)
3. \(\log x = 1{,}6\\ \Leftrightarrow x = 10^{1{,}6} \\ \Leftrightarrow x \approx 39{,}81071705535\)
4. \(\log x = -0{,}29\\ \Leftrightarrow x = 10^{-0{,}29} \\ \Leftrightarrow x \approx 0{,}51286138399136\)
5. \(\log x = 0{,}9\\ \Leftrightarrow x = 10^{0{,}9} \\ \Leftrightarrow x \approx 7{,}9432823472428\)
6. \(\log x = -0{,}03\\ \Leftrightarrow x = 10^{-0{,}03} \\ \Leftrightarrow x \approx 0{,}93325430079699\)
7. \(\log x = -0{,}24\\ \Leftrightarrow x = 10^{-0{,}24} \\ \Leftrightarrow x \approx 0{,}57543993733716\)
8. \(\log x = 0{,}24\\ \Leftrightarrow x = 10^{0{,}24} \\ \Leftrightarrow x \approx 1{,}7378008287494\)
9. \(\log x = 3\\ \Leftrightarrow x = 10^{3} \\ \Leftrightarrow x =1000\)
10. \(\log x = 0{,}06\\ \Leftrightarrow x = 10^{0{,}06} \\ \Leftrightarrow x \approx 1{,}1481536214969\)
11. \(\log x = -0{,}31\\ \Leftrightarrow x = 10^{-0{,}31} \\ \Leftrightarrow x \approx 0{,}48977881936845\)
12. \(\log x = 0{,}27\\ \Leftrightarrow x = 10^{0{,}27} \\ \Leftrightarrow x \approx 1{,}8620871366629\)