log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 0{,}21\)
2. \(\log x = 0{,}27\)
3. \(\log x = 0{,}07\)
4. \(\log x = 0{,}3\)
5. \(\log x = 0{,}6\)
6. \(\log x = -0{,}02\)
7. \(\log x = 2{,}5\)
8. \(\log x = -0{,}07\)
9. \(\log x = 0{,}5\)
10. \(\log x = 0{,}22\)
11. \(\log x = 1{,}7\)
12. \(\log x = -0{,}1\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 0{,}21\\ \Leftrightarrow x = 10^{0{,}21} \\ \Leftrightarrow x \approx 1{,}6218100973589\)
2. \(\log x = 0{,}27\\ \Leftrightarrow x = 10^{0{,}27} \\ \Leftrightarrow x \approx 1{,}8620871366629\)
3. \(\log x = 0{,}07\\ \Leftrightarrow x = 10^{0{,}07} \\ \Leftrightarrow x \approx 1{,}1748975549395\)
4. \(\log x = 0{,}3\\ \Leftrightarrow x = 10^{0{,}3} \\ \Leftrightarrow x \approx 1{,}9952623149689\)
5. \(\log x = 0{,}6\\ \Leftrightarrow x = 10^{0{,}6} \\ \Leftrightarrow x \approx 3{,}981071705535\)
6. \(\log x = -0{,}02\\ \Leftrightarrow x = 10^{-0{,}02} \\ \Leftrightarrow x \approx 0{,}95499258602144\)
7. \(\log x = 2{,}5\\ \Leftrightarrow x = 10^{2{,}5} \\ \Leftrightarrow x \approx 316{,}22776601684\)
8. \(\log x = -0{,}07\\ \Leftrightarrow x = 10^{-0{,}07} \\ \Leftrightarrow x \approx 0{,}85113803820238\)
9. \(\log x = 0{,}5\\ \Leftrightarrow x = 10^{0{,}5} \\ \Leftrightarrow x \approx 3{,}1622776601684\)
10. \(\log x = 0{,}22\\ \Leftrightarrow x = 10^{0{,}22} \\ \Leftrightarrow x \approx 1{,}6595869074376\)
11. \(\log x = 1{,}7\\ \Leftrightarrow x = 10^{1{,}7} \\ \Leftrightarrow x \approx 50{,}118723362727\)
12. \(\log x = -0{,}1\\ \Leftrightarrow x = 10^{-0{,}1} \\ \Leftrightarrow x \approx 0{,}79432823472428\)