Precalc Support Problems

$[tutorials & resource material arranged by topic$

Topics

Basic Triangle Vocabulary: For discussion of right and all triangles; For Sine and Cosine Laws
$sides&angles$ $adjacentopposite$
Review circles, similar, proportional locabulary.: As in sine, cosine, secant, tangent; As in 3-4-5 triangle makes 6-8-x triangle easy to solve; Notes, other related notes; Remind me. Why Is It Legal to Cross Multiply?; questions, answers, pdf of questions.
Expand, multiply binomials.: To solve equation involving a radical or two.; To solve exponential equation.; To complete a trig division as in 1/(sin(x) - 1).; questions, answers, pdf of questions.

Factor.: Before solving quadratic.; Before simplifying trig expressions.; Before solving trig equations.; Before solving log equations.
Divide fraction w/binomial in denominator.: As in complex conjugate as reminder for trig fractions.; As in rewrite trig fraction as in 1/(1- sin(x)); questions, answers, pdf of questions.

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