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受欢迎的代数 >

log_{10}(x)=(1.2)/x

解答

lo g_{10} (x) = \frac{1.2}{x}

解答

x = \frac{1.2 ln ( 10 )}{W _{0} ( 1.2 ln ( 10 ) )}

+1

十进制

x = 2.74064 \dots

求解步骤

lo g_{10} (x) = \frac{1.2}{x}

若

f (x) = g (x)

，则

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

1 0^{l o g_{10} (x)} = 1 0^{\frac{1.2}{x}}

化简

1 0^{l o g_{10} (x)} : x

x = 1 0^{\frac{1.2}{x}}

解

x = 1 0^{\frac{1.2}{x}} : x = \frac{1.2 ln ( 10 )}{W _{0} ( 1.2 ln ( 10 ) )}

x = \frac{1.2 ln ( 10 )}{W _{0} ( 1.2 ln ( 10 ) )}

验证解:

x = \frac{1.2 ln ( 10 )}{W _{0} ( 1.2 ln ( 10 ) )}

真

解是

x = \frac{1.2 ln ( 10 )}{W _{0} ( 1.2 ln ( 10 ) )}

作图

流行的例子

ln (x^{2} - 4) = 8

8(X)^2=64Xlog_{2}(X)

8 (X)^{2} = 64 X lo g_{2} (X)

lo g_{2} (x + 5) = 0

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

lo g_{10} (p) = - n