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受欢迎的代数 >

-c+1+cln(c)=1

解答

- c + 1 + c ln (c) = 1

解答

c = e

+1

十进制

c = 2.71828 \dots

求解步骤

- c + 1 + c ln (c) = 1

两边减去

1

- c + 1 + c ln (c) - 1 = 1 - 1

化简

- c + c ln (c) = 0

将

c

到右边

c ln (c) = c

将

c

para o lado esquerdo

c ln (c) - c = 0

分解

c ln (c) - c : c (ln (c) - 1)

c (ln (c) - 1) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

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

解

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

验证解:

c = 0

假

, c = e

真

解是

c = e

作图

流行的例子

log_{2}(x+1)-log_{2}(x-1)=3

lo g_{2} (x + 1) - lo g_{2} (x - 1) = 3

log_{6}(5x+1)=2log_{6}(3x)

lo g_{6} (5 x + 1) = 2 lo g_{6} (3 x)

1 - 2 ln (x) = 0

ln (3 x - 19) = 2

solvefor x,log_{b}(x+y)=3

so l v e f or x, lo g_{b} (x + y) = 3