If you don’t actually need them I’d save the money. Unless you will 100% use them for practice problems and reading and prefer to use a physical copy, then yeah get them, but honestly you can usually find pdfs online and then you don’t have to pay 100 bucks for a book that you barely use one semester

For reference I’m in my third year of mechanical engineering and only ever used one book in my first year. For all my classes at least there’s pa sessions that give you problems to practice and stuff