log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 3{,}7\)
2. \(\log x = -0{,}05\)
3. \(\log x = 0{,}25\)
4. \(\log x = -0{,}14\)
5. \(\log x = 0{,}05\)
6. \(\log x = -0{,}18\)
7. \(\log x = -3{,}6\)
8. \(\log x = 0{,}13\)
9. \(\log x = 1{,}1\)
10. \(\log x = 0{,}31\)
11. \(\log x = 0{,}9\)
12. \(\log x = 3{,}5\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 3{,}7\\ \Leftrightarrow x = 10^{3{,}7} \\ \Leftrightarrow x \approx 5011{,}8723362727\)
2. \(\log x = -0{,}05\\ \Leftrightarrow x = 10^{-0{,}05} \\ \Leftrightarrow x \approx 0{,}89125093813375\)
3. \(\log x = 0{,}25\\ \Leftrightarrow x = 10^{0{,}25} \\ \Leftrightarrow x \approx 1{,}7782794100389\)
4. \(\log x = -0{,}14\\ \Leftrightarrow x = 10^{-0{,}14} \\ \Leftrightarrow x \approx 0{,}72443596007499\)
5. \(\log x = 0{,}05\\ \Leftrightarrow x = 10^{0{,}05} \\ \Leftrightarrow x \approx 1{,}122018454302\)
6. \(\log x = -0{,}18\\ \Leftrightarrow x = 10^{-0{,}18} \\ \Leftrightarrow x \approx 0{,}6606934480076\)
7. \(\log x = -3{,}6\\ \Leftrightarrow x = 10^{-3{,}6} \\ \Leftrightarrow x \approx 0{,}00025118864315096\)
8. \(\log x = 0{,}13\\ \Leftrightarrow x = 10^{0{,}13} \\ \Leftrightarrow x \approx 1{,}3489628825917\)
9. \(\log x = 1{,}1\\ \Leftrightarrow x = 10^{1{,}1} \\ \Leftrightarrow x \approx 12{,}589254117942\)
10. \(\log x = 0{,}31\\ \Leftrightarrow x = 10^{0{,}31} \\ \Leftrightarrow x \approx 2{,}0417379446695\)
11. \(\log x = 0{,}9\\ \Leftrightarrow x = 10^{0{,}9} \\ \Leftrightarrow x \approx 7{,}9432823472428\)
12. \(\log x = 3{,}5\\ \Leftrightarrow x = 10^{3{,}5} \\ \Leftrightarrow x \approx 3162{,}2776601684\)