log_{10}(w-12)=4.9

解答

lo g_{10} (w - 12) = 4.9

w = 1 0^{4.9} + 12

十进制

w = 79444.82347 \dots

求解步骤

lo g_{10} (w - 12) = 4.9

使用对数运算法则

w - 12 = 1 0^{4.9}

解

w - 12 = 1 0^{4.9} : w = 1 0^{4.9} + 12

w = 1 0^{4.9} + 12

lo g_{6} (x + 4) + lo g_{6} (x - 2) = lo g_{6} (4 x)

lo g_{10} (x) = - 2.2

(lo g_{5} (x))^{2} + 5 lo g_{5} (x) + 6 = 0

0.001 = \frac{ln ( x )}{x}

56 x^{6} ln (x) + 15 x^{6} = 0