log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 1{,}4\)
2. \(\log x = 0{,}08\)
3. \(\log x = 0{,}26\)
4. \(\log x = 0{,}4\)
5. \(\log x = -0{,}21\)
6. \(\log x = 0{,}11\)
7. \(\log x = -0{,}12\)
8. \(\log x = -0{,}2\)
9. \(\log x = 0{,}27\)
10. \(\log x = 2{,}8\)
11. \(\log x = -0{,}29\)
12. \(\log x = 0{,}17\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 1{,}4\\ \Leftrightarrow x = 10^{1{,}4} \\ \Leftrightarrow x \approx 25{,}118864315096\)
2. \(\log x = 0{,}08\\ \Leftrightarrow x = 10^{0{,}08} \\ \Leftrightarrow x \approx 1{,}2022644346174\)
3. \(\log x = 0{,}26\\ \Leftrightarrow x = 10^{0{,}26} \\ \Leftrightarrow x \approx 1{,}81970085861\)
4. \(\log x = 0{,}4\\ \Leftrightarrow x = 10^{0{,}4} \\ \Leftrightarrow x \approx 2{,}5118864315096\)
5. \(\log x = -0{,}21\\ \Leftrightarrow x = 10^{-0{,}21} \\ \Leftrightarrow x \approx 0{,}61659500186148\)
6. \(\log x = 0{,}11\\ \Leftrightarrow x = 10^{0{,}11} \\ \Leftrightarrow x \approx 1{,}2882495516931\)
7. \(\log x = -0{,}12\\ \Leftrightarrow x = 10^{-0{,}12} \\ \Leftrightarrow x \approx 0{,}75857757502918\)
8. \(\log x = -0{,}2\\ \Leftrightarrow x = 10^{-0{,}2} \\ \Leftrightarrow x \approx 0{,}63095734448019\)
9. \(\log x = 0{,}27\\ \Leftrightarrow x = 10^{0{,}27} \\ \Leftrightarrow x \approx 1{,}8620871366629\)
10. \(\log x = 2{,}8\\ \Leftrightarrow x = 10^{2{,}8} \\ \Leftrightarrow x \approx 630{,}95734448019\)
11. \(\log x = -0{,}29\\ \Leftrightarrow x = 10^{-0{,}29} \\ \Leftrightarrow x \approx 0{,}51286138399136\)
12. \(\log x = 0{,}17\\ \Leftrightarrow x = 10^{0{,}17} \\ \Leftrightarrow x \approx 1{,}4791083881682\)