log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -2{,}8\)
2. \(\log x = 0{,}34\)
3. \(\log x = -0{,}8\)
4. \(\log x = -2{,}7\)
5. \(\log x = 0{,}26\)
6. \(\log x = 0{,}08\)
7. \(\log x = 2{,}3\)
8. \(\log x = 2{,}7\)
9. \(\log x = -3{,}9\)
10. \(\log x = -0{,}36\)
11. \(\log x = -0{,}3\)
12. \(\log x = 0{,}07\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -2{,}8\\ \Leftrightarrow x = 10^{-2{,}8} \\ \Leftrightarrow x \approx 0{,}0015848931924611\)
2. \(\log x = 0{,}34\\ \Leftrightarrow x = 10^{0{,}34} \\ \Leftrightarrow x \approx 2{,}1877616239496\)
3. \(\log x = -0{,}8\\ \Leftrightarrow x = 10^{-0{,}8} \\ \Leftrightarrow x \approx 0{,}15848931924611\)
4. \(\log x = -2{,}7\\ \Leftrightarrow x = 10^{-2{,}7} \\ \Leftrightarrow x \approx 0{,}0019952623149689\)
5. \(\log x = 0{,}26\\ \Leftrightarrow x = 10^{0{,}26} \\ \Leftrightarrow x \approx 1{,}81970085861\)
6. \(\log x = 0{,}08\\ \Leftrightarrow x = 10^{0{,}08} \\ \Leftrightarrow x \approx 1{,}2022644346174\)
7. \(\log x = 2{,}3\\ \Leftrightarrow x = 10^{2{,}3} \\ \Leftrightarrow x \approx 199{,}52623149689\)
8. \(\log x = 2{,}7\\ \Leftrightarrow x = 10^{2{,}7} \\ \Leftrightarrow x \approx 501{,}18723362727\)
9. \(\log x = -3{,}9\\ \Leftrightarrow x = 10^{-3{,}9} \\ \Leftrightarrow x \approx 0{,}00012589254117942\)
10. \(\log x = -0{,}36\\ \Leftrightarrow x = 10^{-0{,}36} \\ \Leftrightarrow x \approx 0{,}43651583224017\)
11. \(\log x = -0{,}3\\ \Leftrightarrow x = 10^{-0{,}3} \\ \Leftrightarrow x \approx 0{,}50118723362727\)
12. \(\log x = 0{,}07\\ \Leftrightarrow x = 10^{0{,}07} \\ \Leftrightarrow x \approx 1{,}1748975549395\)