log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 0{,}3\)
2. \(\log x = 1{,}2\)
3. \(\log x = 0{,}13\)
4. \(\log x = -0{,}35\)
5. \(\log x = -3{,}6\)
6. \(\log x = 1{,}6\)
7. \(\log x = 0{,}9\)
8. \(\log x = -1{,}4\)
9. \(\log x = 0{,}03\)
10. \(\log x = -0{,}28\)
11. \(\log x = -3{,}8\)
12. \(\log x = 0{,}7\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 0{,}3\\ \Leftrightarrow x = 10^{0{,}3} \\ \Leftrightarrow x \approx 1{,}9952623149689\)
2. \(\log x = 1{,}2\\ \Leftrightarrow x = 10^{1{,}2} \\ \Leftrightarrow x \approx 15{,}848931924611\)
3. \(\log x = 0{,}13\\ \Leftrightarrow x = 10^{0{,}13} \\ \Leftrightarrow x \approx 1{,}3489628825917\)
4. \(\log x = -0{,}35\\ \Leftrightarrow x = 10^{-0{,}35} \\ \Leftrightarrow x \approx 0{,}44668359215096\)
5. \(\log x = -3{,}6\\ \Leftrightarrow x = 10^{-3{,}6} \\ \Leftrightarrow x \approx 0{,}00025118864315096\)
6. \(\log x = 1{,}6\\ \Leftrightarrow x = 10^{1{,}6} \\ \Leftrightarrow x \approx 39{,}81071705535\)
7. \(\log x = 0{,}9\\ \Leftrightarrow x = 10^{0{,}9} \\ \Leftrightarrow x \approx 7{,}9432823472428\)
8. \(\log x = -1{,}4\\ \Leftrightarrow x = 10^{-1{,}4} \\ \Leftrightarrow x \approx 0{,}03981071705535\)
9. \(\log x = 0{,}03\\ \Leftrightarrow x = 10^{0{,}03} \\ \Leftrightarrow x \approx 1{,}0715193052376\)
10. \(\log x = -0{,}28\\ \Leftrightarrow x = 10^{-0{,}28} \\ \Leftrightarrow x \approx 0{,}52480746024977\)
11. \(\log x = -3{,}8\\ \Leftrightarrow x = 10^{-3{,}8} \\ \Leftrightarrow x \approx 0{,}00015848931924611\)
12. \(\log x = 0{,}7\\ \Leftrightarrow x = 10^{0{,}7} \\ \Leftrightarrow x \approx 5{,}0118723362727\)