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log1、log2、log3、log4、log5、log6、log7、log8、log9、log10台中數學家教名師，讓孩子從基礎開始步步提升。 全球獨家線上珠心算，速學速成終身受用。
微分. dxd (x − 5)(3x2 − 2) 积分. ∫ 01 xe−x2dx. 限制. x→−3lim x2 + 2x − 3x2 − 9. 使用包含逐步求解过程的免费数学求解器解算你的数学题。. 我们的数学求解器支持基础数学、算术、几何、三角函数和微积分等。.
Basic Log Rules. When the argument of a logarithm is the product of two numerals, the logarithm can be re-written as the addition of the logarithm of each of the numerals. log b (x × y) = log b x + log b y. EX: log (1 × 10) = log (1) + log (10) = 0 + 1 = 1.
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%È系微 , 100}(:¯`ç ç ˇ) Àj 24: úbƒb 單元 24: 對數函數 ({… 5.2)q b > 0 / b 6= 1. Nbj˙˜ by = x,x > 0 íj y 4uU) b b í冪Ÿ (power) Ñ x ví冪 Ÿ, 1J logb x [ý, ¹ y = logb x J/ñJ x = by, x > 0 /˚TJ b Ñ í x íúb (logarithm of x to the base b). Wà, 根Wúbíì2, (a) log10 100 = 2 (ÄÑ 100 = 102) ...
来自 Web 搜索的类似问题. log3 −log2. https://www.tiger-algebra.com/drill/log3-log2/. log (3)-log (2)Using the Logarithm quotient rule logb (x / y) = logb (x) - logb (y) Note that division inside the log can be turned into subtraction outside the log, and vice versa In our case, we will ... log3 −log4.
6 天前 · In other words, the logarithm of x, or logₐ (x), shows what power we need to raise a to (or if x is greater than 1, how many times a needs to be multiplied by itself) to produce the value x. From this view, we can represent the logarithm in the following way as well: \mathrm {a^ { {log}_a (x)}} =\mathrm x aloga(x) = x.
You can use the change of base rule in revers to convert log(81)/log(3) into log3(81). Then find the exponent that when applied to 3 = 81, which is 4.
One exponent rule is that b^-n=1/b^n. Thus for log3(1/9) you are solving 3^x=1/9. Since 3^2=9, 3^-2=1/9 and there's your answer, -2.
