log₁₀ met rekenmachien

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Bepaal x met ZRM

1. \(\log x = 0{,}38\)
2. \(\log x = -0{,}13\)
3. \(\log x = -2{,}9\)
4. \(\log x = -0{,}2\)
5. \(\log x = -3{,}5\)
6. \(\log x = -0{,}22\)
7. \(\log x = -0{,}03\)
8. \(\log x = 3{,}2\)
9. \(\log x = -0{,}36\)
10. \(\log x = -0{,}09\)
11. \(\log x = -3{,}7\)
12. \(\log x = -1{,}2\)

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Bepaal x met ZRM

Verbetersleutel

1. \(\log x = 0{,}38\\ \Leftrightarrow x = 10^{0{,}38} \\ \Leftrightarrow x \approx 2{,}3988329190195\)
2. \(\log x = -0{,}13\\ \Leftrightarrow x = 10^{-0{,}13} \\ \Leftrightarrow x \approx 0{,}74131024130092\)
3. \(\log x = -2{,}9\\ \Leftrightarrow x = 10^{-2{,}9} \\ \Leftrightarrow x \approx 0{,}0012589254117942\)
4. \(\log x = -0{,}2\\ \Leftrightarrow x = 10^{-0{,}2} \\ \Leftrightarrow x \approx 0{,}63095734448019\)
5. \(\log x = -3{,}5\\ \Leftrightarrow x = 10^{-3{,}5} \\ \Leftrightarrow x \approx 0{,}00031622776601684\)
6. \(\log x = -0{,}22\\ \Leftrightarrow x = 10^{-0{,}22} \\ \Leftrightarrow x \approx 0{,}60255958607436\)
7. \(\log x = -0{,}03\\ \Leftrightarrow x = 10^{-0{,}03} \\ \Leftrightarrow x \approx 0{,}93325430079699\)
8. \(\log x = 3{,}2\\ \Leftrightarrow x = 10^{3{,}2} \\ \Leftrightarrow x \approx 1584{,}8931924611\)
9. \(\log x = -0{,}36\\ \Leftrightarrow x = 10^{-0{,}36} \\ \Leftrightarrow x \approx 0{,}43651583224017\)
10. \(\log x = -0{,}09\\ \Leftrightarrow x = 10^{-0{,}09} \\ \Leftrightarrow x \approx 0{,}8128305161641\)
11. \(\log x = -3{,}7\\ \Leftrightarrow x = 10^{-3{,}7} \\ \Leftrightarrow x \approx 0{,}00019952623149689\)
12. \(\log x = -1{,}2\\ \Leftrightarrow x = 10^{-1{,}2} \\ \Leftrightarrow x \approx 0{,}063095734448019\)