lim(x→0)[(√1+x+x2)-1]/sin2x=()
A: 1
B: 1/2
C: 2/3
D: 1/4
A: 1
B: 1/2
C: 2/3
D: 1/4
举一反三
- [x^2*sin(1/x^2)]/x的X趋于0的极限,为什么不能用sin(1/x^2)~1/x^2带入.
- a = [x for x in range(4) if x % 2 ==1],语句print(a)输出为 A: [1, 2, 3] B: [0, 1, 2, 3] C: [0, 2] D: [1, 3]
- \( \lim \limits_{x \to 0} {x^2}\sin {1 \over x} =\)______。______
- \( \lim \limits_{x \to 0} { { \sqrt {1 + x\sin x} - \cos x} \over { { {\sin }^2}{x \over 2}}} = \)______ 。
- 执行y=[x for x in range(5) if x%2==1]后,y结果是( )。 A: [1, 3, 5] B: [0, 2, 4] C: [1, 3] D: [2, 4]