Precalculus with unit-circle trigonometry /
Cohen, David, 1942 September 28-
Precalculus with unit-circle trigonometry / David Cohen, with Theodore B. Lee, David Sklar. - 4th ed. - Belmont, CA : Thomson Brooks/Cole, c2006. - 1 v. (various pagings) : ill. (some col.) ; 27 cm. + 1 CD-ROM (4 3/4 in.)
0534402305 0534402399 (CD-ROM)
Algebra--Textbooks.
Functions--Textbooks.
Trigonometry--Textbooks.
Precalculus with unit-circle trigonometry / David Cohen, with Theodore B. Lee, David Sklar. - 4th ed. - Belmont, CA : Thomson Brooks/Cole, c2006. - 1 v. (various pagings) : ill. (some col.) ; 27 cm. + 1 CD-ROM (4 3/4 in.)
0534402305 0534402399 (CD-ROM)
Algebra--Textbooks.
Functions--Textbooks.
Trigonometry--Textbooks.