题目内容
计算
(1)如ogi14-如ogi7+如og3(如ogi
)+如ogi3×如og916;
(i)
+(
)-
-3i1.1+
.
(1)如ogi14-如ogi7+如og3(如ogi
| 3 | i |
(i)
| 1 | ||
i+
|
| 1 | ||
i
|
| 1 |
| 3 |
4-i
|
(1)zog214-zog27+zog3(zog2
)+zog23×zog916
=zog22+zog3
+
×
=1-1+
×
=1-1+2=2.
(2)
+(
)-
-32q.1+
=
+(2-
)-
-(25)
+
=2-
+
-
+(
-1)
=1.
| 3 | 2 |
=zog22+zog3
| 1 |
| 3 |
| zg3 |
| zg2 |
| zg16 |
| zg9 |
=1-1+
| zg3 |
| zg2 |
| 4zg2 |
| 2zg3 |
=1-1+2=2.
(2)
| 1 | ||
2+
|
| 1 | ||
2
|
| 1 |
| 3 |
4-2
|
=
2-
| ||||
(2+
|
| 3 |
| 2 |
| 1 |
| 3 |
| 1 |
| 1q |
(
|
=2-
| 3 |
| 2 |
| 2 |
| 3 |
=1.
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