log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 0{,}2\)
2. \(\log x = -0{,}17\)
3. \(\log x = 1{,}2\)
4. \(\log x = -0{,}35\)
5. \(\log x = -0{,}2\)
6. \(\log x = 2{,}7\)
7. \(\log x = 3{,}8\)
8. \(\log x = -1{,}9\)
9. \(\log x = -2{,}2\)
10. \(\log x = 2{,}6\)
11. \(\log x = 0{,}29\)
12. \(\log x = 3{,}2\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 0{,}2\\ \Leftrightarrow x = 10^{0{,}2} \\ \Leftrightarrow x \approx 1{,}5848931924611\)
2. \(\log x = -0{,}17\\ \Leftrightarrow x = 10^{-0{,}17} \\ \Leftrightarrow x \approx 0{,}67608297539198\)
3. \(\log x = 1{,}2\\ \Leftrightarrow x = 10^{1{,}2} \\ \Leftrightarrow x \approx 15{,}848931924611\)
4. \(\log x = -0{,}35\\ \Leftrightarrow x = 10^{-0{,}35} \\ \Leftrightarrow x \approx 0{,}44668359215096\)
5. \(\log x = -0{,}2\\ \Leftrightarrow x = 10^{-0{,}2} \\ \Leftrightarrow x \approx 0{,}63095734448019\)
6. \(\log x = 2{,}7\\ \Leftrightarrow x = 10^{2{,}7} \\ \Leftrightarrow x \approx 501{,}18723362727\)
7. \(\log x = 3{,}8\\ \Leftrightarrow x = 10^{3{,}8} \\ \Leftrightarrow x \approx 6309{,}5734448019\)
8. \(\log x = -1{,}9\\ \Leftrightarrow x = 10^{-1{,}9} \\ \Leftrightarrow x \approx 0{,}012589254117942\)
9. \(\log x = -2{,}2\\ \Leftrightarrow x = 10^{-2{,}2} \\ \Leftrightarrow x \approx 0{,}0063095734448019\)
10. \(\log x = 2{,}6\\ \Leftrightarrow x = 10^{2{,}6} \\ \Leftrightarrow x \approx 398{,}1071705535\)
11. \(\log x = 0{,}29\\ \Leftrightarrow x = 10^{0{,}29} \\ \Leftrightarrow x \approx 1{,}949844599758\)
12. \(\log x = 3{,}2\\ \Leftrightarrow x = 10^{3{,}2} \\ \Leftrightarrow x \approx 1584{,}8931924611\)