问题
解答题
利用幂的运算性质计算: (1)
(2)(
(3)
(4)
|
答案
(1)原式=5
×51 2
=51 3
+1 2 1 3
=55 6
=
;6 55
(2)原式=94
=6561;
(3)原式=3
×34 3 1 2
=311 6
=
;6 311
(4)原式=3×2
÷21 2 1 3
=3×21 6
=3
.6 2
利用幂的运算性质计算: (1)
(2)(
(3)
(4)
|
(1)原式=5
×51 2
=51 3
+1 2 1 3
=55 6
=
;6 55
(2)原式=94
=6561;
(3)原式=3
×34 3 1 2
=311 6
=
;6 311
(4)原式=3×2
÷21 2 1 3
=3×21 6
=3
.6 2