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受欢迎的代数 >

-x=ln(2x)

解答

- x = ln (2 x)

解答

x = W_{0} (\frac{1}{2})

+1

十进制

x = 0.35173 \dots

求解步骤

- x = ln (2 x)

若

f (x) = g (x)

，则

a^{f (x)} = a^{g (x)}

e^{- x} = e^{l n (2 x)}

化简

e^{l n (2 x)} : 2 x

e^{- x} = 2 x

解

e^{- x} = 2 x : x = W_{0} (\frac{1}{2})

x = W_{0} (\frac{1}{2})

验证解:

x = W_{0} (\frac{1}{2})

真

解是

x = W_{0} (\frac{1}{2})

作图

流行的例子

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

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

solvefor x,ln(x^2-y^2)=0

so l v e f or x, ln (x^{2} - y^{2}) = 0

3ln(5x-7)-4=-10

3 ln (5 x - 7) - 4 = - 10

log_{3}(log_{5}(x))=0

lo g_{3} (lo g_{5} (x)) = 0

ln(2x-1)+ln(x+2)=0

ln (2 x - 1) + ln (x + 2) = 0