计算(2又 7/9)ˆ1/2+(lg5)º+(27/64)ˆ-1/3 解方程 log以3为底的 (6ˆx-9)=3
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![计算(2又 7/9)ˆ1/2+(lg5)º+(27/64)ˆ-1/3 解方程 log以3为底的 (6ˆx-9)=3](/uploads/image/z/3911262-6-2.jpg?t=%E8%AE%A1%E7%AE%97%282%E5%8F%88+7%2F9%29%26%23710%3B1%2F2%2B%28lg5%29%26%23186%3B%2B%2827%2F64%29%26%23710%3B-1%2F3+%E8%A7%A3%E6%96%B9%E7%A8%8B+log%E4%BB%A53%E4%B8%BA%E5%BA%95%E7%9A%84+%286%26%23710%3Bx-9%29%3D3)
计算(2又 7/9)ˆ1/2+(lg5)º+(27/64)ˆ-1/3 解方程 log以3为底的 (6ˆx-9)=3
计算(2又 7/9)ˆ1/2+(lg5)º+(27/64)ˆ-1/3 解方程 log以3为底的 (6ˆx-9)=3
计算(2又 7/9)ˆ1/2+(lg5)º+(27/64)ˆ-1/3 解方程 log以3为底的 (6ˆx-9)=3
=(25/9)^1/2 +1 +4/3
=5/3+1+4/3
=4
log以3为底的 (6ˆx-9)=3
6ˆx-9=3^3
6ˆx-9=27
6ˆx-=36
X=2
绝对的标准!