问题:
计算与求值
(1)计算
16
+|1-
2
|-
3
-27
-
2
.
(2)已知实数x、y满足y=
2x-1
+
1-2x
+2,求xy的平方根.
计算与求值
(1)计算
+|1-
|-
-
.
(2)已知实数x、y满足y=
+
+2,求xy的平方根.
(1)计算
16 |
2 |
3 | -27 |
2 |
(2)已知实数x、y满足y=
2x-1 |
1-2x |
参考答案: