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受欢迎的代数 >

aln(a)-a*1=0

解答

a ln (a) - a \cdot 1 = 0

解答

a = e

+1

十进制

a = 2.71828 \dots

求解步骤

a ln (a) - a \cdot 1 = 0

乘以:

a \cdot 1 = a

a ln (a) - a = 0

将

a

到右边

a ln (a) = a

将

a

para o lado esquerdo

a ln (a) - a = 0

分解

a ln (a) - a : a (ln (a) - 1)

a (ln (a) - 1) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

a = 0 or ln (a) - 1 = 0

解

ln (a) - 1 = 0 : a = e

验证解:

a = 0

假

, a = e

真

解是

a = e

作图

流行的例子

log_{10}(4-3x)=32

lo g_{10} (4 - 3 x) = 32

ln (17 x + 8) = 1

3 ln (x - 1) - 2 = 4

9/8 log_{3}(x)=3

\frac{9}{8} lo g_{3} (x) = 3

log_{5}(x)=4log_{x}(5)+3

lo g_{5} (x) = 4 lo g_{x} (5) + 3