lim(x→0-)(ax)/√(1-cosx)=?
举一反三
- lim(x趋向于0)(1-cosx^2)/((x^3)*sinx)
- ①lim(x→∞)sin(1/x)/(1/x)等于多少?②lim(x→0)sin(1/x)/(1/x)等于多少?
- lim(1-3x)^(1/x)=_____(x→0)
- 在x→0的过程中,ax^b与1-cosx是等价无穷小,则 a = ____,b=_____.
- 下列极限计算正确的是( ). A: \(\lim \limits_{x \to 0} { { \left| x \right|} \over x} = 1\) B: \(\lim \limits_{x \to {0^ + }} { { \left| x \right|} \over x} = 1\) C: \(\lim \limits_{x \to 0} {(1 - {1 \over {2x}})^{2x}} = {e^{ - 1}}\) D: \(\lim \limits_{x \to \infty } {(1 - {1 \over {2x}})^{2x}} = e\)