题目内容
(8分)
(1)计算:
(2)解方程:
(1)2+4
(2)x1=- x2=3
解析:(1)2+4 (2)x1=- x2=3
(每小题7分,共14分)
(1)计算:︱一2 ︱+()-1×(π一)0一+(一1) 2;
(2)解方程:x—1=.
(8分)计算:
1.(1)
2.(2)
3.(3);
4. (4)
(本题满分6分)计算:.