Pre-calculus (for senior high school) - Olvido, Lucrecia R.; Torreon, Charito G.; Paez, Teresita F.; Aquino, Rolando J.; Berces, Angel (Mandaluyong City : Books Atbp. Publishing Corp., 2016)
Chapter One. Conics -- Chapter Two. Systems of nonlinear equations -- Chapter Three. Series and mathematical induction -- Chapter Four. Trigonometric (circular) functions -- Chapter Five. The trigonometric identities -- Chapter Six. The inverse trigonometric functions -- Chapter Seven. Polar coordinates -- References.
Includes references.