计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)...计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)a^(1/2)a^(1/4)a^(-1/8); (4)2x^(-1/3)[(1

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计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)...计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)a^(1/2)a^(1/4)a^(-1/8); (4)2x^(-1/3)[(1
计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)...
计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)a^(1/2)a^(1/4)a^(-1/8); (4)2x^(-1/3)[(1/2)x^(1/3)-2x^(-2/3)]

计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)...计算下列各式:(1)(36/49)^(3/2); (2)(√12)×(3√1.5)×(6√12); (3)a^(1/2)a^(1/4)a^(-1/8); (4)2x^(-1/3)[(1
1:相当于6/7的平方后再是3/2次方,就等于6/7的三次方,等于216/343
2:根号内外分别相乘,外面是18,里面是216,216开方是6倍根号六,一起则是108倍根号6
3:底数相同,指数相加,也就是a的(1/2+1/4-1/8=5/8)次方
4:分布运算,拆开括号,第一项是2x^(-1/3)乘以(1/2)x^(1/3)=1(任何非0的数的0次方是1),第二项2x^(-1/3)[-2x^(-2/3)]等于-4x^(-1),两式相加得1减去4倍x的负一次方或者说1-4/x

1.[√(36/49)]ˇ3=6/7ˇ3=216/329
2.(√12)×(3√1.5)×(6√12)=3×6×√(12×1.5×12)=18×6√6=108√6
3. a^(1/2)a^(1/4)a^(-1/8)=aˇ(1/2+1/4-1/8)=aˇ(5/8)
4.2x^(-1/3)[(1/2)x^(1/3)-2x^(-2/3)]=2x^(-1/3)(1/2)x^(1/3...

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1.[√(36/49)]ˇ3=6/7ˇ3=216/329
2.(√12)×(3√1.5)×(6√12)=3×6×√(12×1.5×12)=18×6√6=108√6
3. a^(1/2)a^(1/4)a^(-1/8)=aˇ(1/2+1/4-1/8)=aˇ(5/8)
4.2x^(-1/3)[(1/2)x^(1/3)-2x^(-2/3)]=2x^(-1/3)(1/2)x^(1/3)-2x^(-2/3)2x^(-1/3)=xˇ(-1/3+1/3)-4xˇ(-2/3-1/3)=1-4/x

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