(computer algebra) using mathematica, maple, or some other computer algebra package, apply the poincaré-lindstedt method to the problem č + x - x = 0, with x(0) = a, and (0)=0. find the frequency w of periodic solutions, up to and including the o(& *) term.

How does is make you feel when you're kind to others? what are some opportunities in your life to be more kind to your friends and loved ones? imagine a world where kindness has be outlawed. how would people act differently? would your day-to-day life change significantly? why or why not?

Which program can damage your computer?

Acontact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. write a program that first takes in word pairs that consist of a name and a phone number (both strings). that list is followed by a name, and your program should output that name's phone number.