化简 1/2 (5+log_{2}(3))

解答

化简

\frac{1}{2} (5 + lo g_{2} (3))

\frac{5}{2} + \frac{1}{2} lo g_{2} (3)

十进制

3.29248 \dots

求解步骤

\frac{1}{2} (5 + lo g_{2} (3))

使用分配律:

a (b + c) = ab + a c

\frac{1}{2} (5 + lo g_{2} (3)) = \frac{1}{2} \cdot 5 + \frac{1}{2} lo g_{2} (3)

= \frac{1}{2} \cdot 5 + \frac{1}{2} lo g_{2} (3)

\frac{1}{2} \cdot 5 = \frac{5}{2}

= \frac{5}{2} + \frac{1}{2} lo g_{2} (3)

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