问题
解答题
计算: (1)(
(2)(0.0081)-
|
答案
(1)原式=(a
b-6 5
)-3 2
×a1 2
÷b3 5
=a-3 4
b3 5
×a3 4
÷b3 5
=1;3 4
(2)原式=(0.3)4×(-
)-3×[(34)-1 4
+(1 4
)-3×(-2 3
)]-1 3
-10×(0.3)3×1 2
=1 3
-3(10 3
+1 3
)-2 3
-3=-1 2
.8 3