Without their consent, duplicating someone else’s assignment is unethical, undermines academic integrity, and can have significant repercussions.
Copying someone else’s work indicates that you are not making an effort to understand the subject on your own, which might be detrimental to your long-term success. It is always preferable to finish your own work and ask your teacher or fellow students for assistance if necessary.
It’s acceptable to contact your instructor, tutor, or a fellow student for help or explanation if you’re having trouble with your assignment, but be sure you’re not simply duplicating their work.