指数・対数関数（数学Ⅱ）
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高校数学Ⅱの指数関数・対数関数で習う指数法則と対数法則のまとめ。底の変換公式とその証明。
指数関数の方程式と不等式の解き方。指数関数の方程式（指数方程式）と不等式はべき指数を比較して解きます。
We can recognize logarithms as "fractions of exponential". Multiplying the same number with nominators and denominators, we can rewrite fractions with a different expression. Likewise, we rewrite logarithms with different expressions.
The most important logarithm properties are product and quotient rules. Many logarithm formulas are derived from these rules.