Contact us
Choose a category below so we can get back to you as quickly as possible.
令t=cosx, 則∫1/(1-t^2)dt =1/2∫[1/(1+t)+1/(1-t)]dt =1/2[ln│1+t│-ln│1-t│]+C =1/2[ln│1+cosx│-ln│1-cosx│]+C
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.