What textbooks for in-depth study of school algebra and geometry can you recommend?

Question

Books

Help fill in the gaps in the knowledge of the school curriculum, advise textbooks, preferably with assignments.

Answer 1

Almost any training manual for the initial courses of almost any university will do. Matan, linear algebra, stereometry, theory, etc. - all this is studied in one way or another in all universities and this is a logical continuation of school mathematics.