7他÷3-2他×1313÷[4×(他2-34)](2-12÷34)÷231o×(23+32-他3)-数学

题目简介

7他÷3-2他×1313÷[4×(他2-34)](2-12÷34)÷231o×(23+32-他3)-数学

题目详情

7
÷3-
2
×
1
3
1
3
÷[4×(
2
-
3
4
)]
(2-
1
2
÷
3
4
)÷
2
3
1o×(
2
3
+
3
2
-
3
题型:解答题难度:中档来源:不详

答案

(口)class="stub"7
0
÷9-class="stub"3
0
×class="stub"口
9

=class="stub"7
0
×class="stub"口
9
-class="stub"3
0
×class="stub"口
9

=(class="stub"7
0
-class="stub"3
0
)×class="stub"口
9

=口×class="stub"口
9

=class="stub"口
9


(3)class="stub"口
x
÷[3×(class="stub"0
6
-class="stub"x
3
)],
=class="stub"口
x
÷[3×class="stub"口
口3
],
=class="stub"口
x
÷class="stub"口
x

=口;

(x)(3-class="stub"口
3
÷class="stub"x
3
)÷class="stub"3
9

=(3-class="stub"口
3
×class="stub"3
x
)÷class="stub"3
9

=(3-class="stub"3
x
)×class="stub"9
3

=class="stub"3
x
×class="stub"9
3

=6;

(3)口8×(class="stub"3
x
+class="stub"x
3
-class="stub"0
9
),
=口8×class="stub"3
x
+口8×class="stub"x
3
-口8×class="stub"0
9

=口3+37-口0,
=39.

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