化简 ln((0.7285)/(0.7285-0.1314))

解答

化简

ln (\frac{0.7285}{0.7285 - 0.1314})

ln (0.7285) - ln (0.5971)

十进制

0.19890 \dots

求解步骤

ln (\frac{0.7285}{0.7285 - 0.1314})

使用对数计算法则:

lo g_{c} (\frac{a}{b}) = lo g_{c} (a) - lo g_{c} (b)

ln (\frac{0.7285}{0.7285 - 0.1314}) = ln (0.7285) - ln (0.7285 - 0.1314)

= ln (0.7285) - ln (0.7285 - 0.1314)

数字相减:

0.7285 - 0.1314 = 0.5971

= ln (0.7285) - ln (0.5971)

s im pl i f y ln (\frac{n ^{2} + 2}{3 n ^{2} + 5})

e x p an d lo g_{10} (C \cdot x^{a} \cdot y^{b})

e x p an d ln ((7 x^{3} + 3)^{c o s (x)})

s im pl i f y ln (x - 4) [ln (x - 5) + ln (x + 5)]

s im pl i f y ln (\frac{10}{12})