cert_exam:tech_radio_op_1:b:formula:start
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| cert_exam:tech_radio_op_1:b:formula:start [2019/12/31 22:38] – fu | cert_exam:tech_radio_op_1:b:formula:start [2019/12/31 22:46] (current) – [高校数学] fu | ||
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| === 対数log === | === 対数log === | ||
| \[ | \[ | ||
| - | log_a M N = log_a M + log_a N | + | log_a M N = log_a M + log_a N \\ |
| + | log_a \frac{M}{N} = log_a M - log_a N \\ | ||
| + | log_a b = \frac{log_c b}{log_c a} \\ | ||
| + | log_a M^r = r log_a M | ||
| \] | \] | ||
cert_exam/tech_radio_op_1/b/formula/start.1577799530.txt.gz · Last modified: by fu