摘要
When I learned the following basic formula of indefinite integrals in the calculus,at that time I was a teenager,the strange ideas had jump out my head.I would be a great girl in math if I can change all the "?" in the following formula to the real
When I learned the following basic formula of indefinite integrals in the calculus, at that time I was a teenager, the strange ideas had jump out my head.
