Contact us
Choose a category below so we can get back to you as quickly as possible.
x→0時 [tanx+x^2*sin(1/x)]/(2x) →(1/2)[(tanx)/x+xsin(1/x)] →(1/2)(1+0) =1/2. 注意:|sin(1/x)|
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.