Recent content by joanmanuelbl

here is the equation as an image Greetings, here is the equation: [img=http://aycu20.webshots.com/image/10219/2000193818725334174_rs.jpg] Could somebody explain me, please, how the autor obtains both values of xi? Please I really need your help, take in account that the domain goes from -1...

thank for the reply but I still have doubts Thank you for the reply, I will put the equation in a better wayat I do not know from where the author obtains the values of xi? why is it 2i-1/20 or the other way? Please help me

Greetings my friends: I have been reading a book about optimization and I found the following trigonometric equation: tan(10x.pi)= - 10 pi x (this equation goes from x E [-1,2] it is easy to see that has infinite solutions, but the author came to the conclusion that the solutions are...