Pre-Calculus
Trig Identities 7: The Sum and Difference Identities
This lesson presents the identities for the sum and difference of angles, and offers a
These pre-calculus lessons are meant to bridge the gap between Math SN5 and Calculus 1. Many students who go directly from Math SN5 to Calculus 1 have difficulty with some of the algebraic procedures that are essential to Calculus but are not covered in the Quebec SN5 curriculum. These lessons provide a solid foundation that students will need in order to be successful in Calculus. (Additional lessons are in development.)
The primary objectives of these lessons are to provide:
LEARN Design and Development Team: Author/Lead Teacher: Audrey McLaren, BSc, DipEd; Editor: Steven Rossy, MD; and Instructional Designer: Kristine Thibeault, MEd
This lesson presents the identities for the sum and difference of angles, and offers a
This second lesson on the algebra of identities covers multiplying numerator and denominator by a
Proving trigonometric identities typically involves fairly complex algebraic procedures, which are addressed in this lesson
In this lesson, the traditional form and procedure of a proof of a trigonometric identity
This lesson steps out of the pure algebra of identities to do some numerical calculations.
The unit circle is used to develop the basic Pythagorean identity, which is then built
This lesson gives a context for the meaning and use of trigonometric identities. The quotient
This lesson uses the power of a power property to develop the meaning of a1/n,
The property (ab)n = anbn is presented and incorporated into examples involving both like and
Exponent Boot Camp 3 is an intuitive explanation of the power of a power property
Exponent Boot Camp 2 re-examines the quotient property, this time in rational form, in order
Exponent Boot Camp 1 offers an intuitive explanation of the two rules with which most