log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = -2{,}4\)
2. \(\log x = 2{,}2\)
3. \(\log x = -2{,}8\)
4. \(\log x = -2{,}7\)
5. \(\log x = 0{,}31\)
6. \(\log x = 1{,}1\)
7. \(\log x = 3{,}1\)
8. \(\log x = 0{,}27\)
9. \(\log x = -0{,}5\)
10. \(\log x = 0{,}4\)
11. \(\log x = 0{,}07\)
12. \(\log x = 0{,}11\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = -2{,}4\\ \Leftrightarrow x = 10^{-2{,}4} \\ \Leftrightarrow x \approx 0{,}003981071705535\)
2. \(\log x = 2{,}2\\ \Leftrightarrow x = 10^{2{,}2} \\ \Leftrightarrow x \approx 158{,}48931924611\)
3. \(\log x = -2{,}8\\ \Leftrightarrow x = 10^{-2{,}8} \\ \Leftrightarrow x \approx 0{,}0015848931924611\)
4. \(\log x = -2{,}7\\ \Leftrightarrow x = 10^{-2{,}7} \\ \Leftrightarrow x \approx 0{,}0019952623149689\)
5. \(\log x = 0{,}31\\ \Leftrightarrow x = 10^{0{,}31} \\ \Leftrightarrow x \approx 2{,}0417379446695\)
6. \(\log x = 1{,}1\\ \Leftrightarrow x = 10^{1{,}1} \\ \Leftrightarrow x \approx 12{,}589254117942\)
7. \(\log x = 3{,}1\\ \Leftrightarrow x = 10^{3{,}1} \\ \Leftrightarrow x \approx 1258{,}9254117942\)
8. \(\log x = 0{,}27\\ \Leftrightarrow x = 10^{0{,}27} \\ \Leftrightarrow x \approx 1{,}8620871366629\)
9. \(\log x = -0{,}5\\ \Leftrightarrow x = 10^{-0{,}5} \\ \Leftrightarrow x \approx 0{,}31622776601684\)
10. \(\log x = 0{,}4\\ \Leftrightarrow x = 10^{0{,}4} \\ \Leftrightarrow x \approx 2{,}5118864315096\)
11. \(\log x = 0{,}07\\ \Leftrightarrow x = 10^{0{,}07} \\ \Leftrightarrow x \approx 1{,}1748975549395\)
12. \(\log x = 0{,}11\\ \Leftrightarrow x = 10^{0{,}11} \\ \Leftrightarrow x \approx 1{,}2882495516931\)