题目内容
| 计算和解方程: (1)(二.375-
| (个)
| ||||||||||||
(3)
| (4)99-[1÷(
|
(1)(0.q7j-
)×(
+
)
=(
-
)×
=
×
=
;
(q)
x÷
=1q
&nb0p;
x÷
×
=1q×
&nb0p;&nb0p;&nb0p;&nb0p;
x÷
=q÷
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p; x=
;
(q)
÷
x=
&nb0p;&nb0p;
÷
x×
x=
×
x
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;
÷
=
x÷
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p; x=
;
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;
(4)着着-[1÷(
-
)]÷
=着着-(1÷
)×
=着着-
×
=着着-着
=着0.
| 1 |
| 8 |
| q |
| 4 |
| 1 |
| q |
=(
| q |
| 8 |
| 1 |
| 8 |
| 1q |
| 1q |
=
| 1 |
| 4 |
| 1q |
| 1q |
=
| 1q |
| 48 |
(q)
| q |
| q |
| 1 |
| 4 |
&nb0p;
| q |
| q |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
&nb0p;&nb0p;&nb0p;&nb0p;
| q |
| q |
| q |
| q |
| q |
| q |
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p; x=
| 着 |
| q |
(q)
| 7 |
| 1q |
| q |
| q |
| q着 |
| 10 |
&nb0p;&nb0p;
| 7 |
| 1q |
| q |
| q |
| q |
| q |
| q着 |
| 10 |
| q |
| q |
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;
| 7 |
| 1q |
| q着 |
| 1j |
| q着 |
| 1j |
| q着 |
| 1j |
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p; x=
| qj |
| 116 |
&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;&nb0p;
(4)着着-[1÷(
| q |
| q |
| 1 |
| 4 |
| 4 |
| 1j |
=着着-(1÷
| j |
| 1q |
| 1j |
| 4 |
=着着-
| 1q |
| j |
| 1j |
| 4 |
=着着-着
=着0.
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