化简 ln((29750-20000)/(120000-0))

解答

化简

ln (\frac{29750 - 20000}{120000 - 0})

ln (9750) - ln (120000)

十进制

- 2.51022 \dots

求解步骤

ln (\frac{29750 - 20000}{120000 - 0})

使用对数计算法则:

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

ln (\frac{29750 - 20000}{120000 - 0}) = ln (29750 - 20000) - ln (120000 - 0)

= ln (29750 - 20000) - ln (120000 - 0)

数字相减:

29750 - 20000 = 9750

= ln (9750) - ln (120000 - 0)

数字相减:

120000 - 0 = 120000

= ln (9750) - ln (120000)

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