なぜ対数は負にできないのでしょうか?
Can you evaluate a log for a negative number
負の底と負の入力を持つ対数
対数関数の制限 - 底を負にできない理由
Why can't the base of a log be negative, How to find logarithm of a number with negative base
Why is the log of a negative number not defined, Learn How to find logarithm of negative numbers
Why Can't Logarithms Be Negative? JEE Basics
ログに負の数値を含めることができないのはなぜですか?
KRAZIFIZIX MATRIC MATHS COCK CROW DAY 4 - Functions and Financial Maths
負の BASES と負の引数の対数! [ 複素数の対数 z ]
Why base of logarithm can't be negative?.conditions for base and argument of logarithm.
log of a negative number
why log of negative number is not defined / Logarithm / Log / logarithm can't be negative
why base of log cannot be negative || why base of log cannot be 1 || logarithm || log | tricky world
Why Base of log cannot be negative | can logarithm of negative number be real?
Q4 Is Logarithm negative for Domain Between Zero and One for log x
Log of a negative number
What is the inverse of negative log?
Part 10 - Log of Negative Number and Zero
why log is not defined for negative numbers?