若函数在点(1,-1)处取得极值,则常数a=(),b=().
A: 0,4
B: 1,5
C: 4,0
D: 5,1
A: 0,4
B: 1,5
C: 4,0
D: 5,1
举一反三
- 若函数 [img=259x27]1803bbed92aba9b.png[/img]在点(1,-1)处取得极值，则常数a= ______,b = _______ A: a = 1,b =4 B: a = 0,b =2 C: a =1,b =2 D: a = 0,b =4
- 【单选题】如图示代码,下面哪个是正确的输出结果 A. 0 1 2 3 4 5 B. 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 C. 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 D. 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5
- 设a=[1 2 0 3 1]，则在matlab平台执行指令find(a)的运行结果为（） A: 5，1 B: 1，5 C: 1 2 4 5 D: 1 2 3 5
- 函数[img=165x39]17da5933bb4cb3b.png[/img]的连续区间是 ( ) . A: (0, 5) B: (0, 1) C: (1, 5) D: (0, 1) ∪(1,5]
- 【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]