Wang Hao, Wang Wenlong. Elementary Algebra Exercise Book II

Bookboon, 2012. — 149 p. — ISBN: 978-87-403-1297-3Algebra is one of the main branches in mathematics. The book series of elementary algebra exercises includes useful problems in most topics in basic algebra. The problems have a wide variation in difficulty, which is indicated by the number of stars. This is the second book of this series.Trigonometric Functions
Sequences
Functions.