This worksheet focuses on trigonometric identities involving expressions of the form:
180° ± x
360° ± x
540° ± x
90° − x
Students are given a trigonometric function in terms of k (e.g., tan x = k), and are required to:
Apply identities to find the equivalent value for angles like 180° - x, 360° - x, etc. (SATC)
Use Pythagorean identities and trigonometric ratios to derive expressions for sin x, cos x, or tan x in terms of k.
There are 15 sets of questions, each with 3 sub-questions.
Answer keys are provided at the end.
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