Hour of Math · SS2 · Unit FMP17

Ratios in a Right Triangle and the Exact Values of 30°, 45° and 60°

Find one trigonometric ratio from another in a right-angled triangle, derive the exact sine, cosine and tangent of 30°, 45° and 60° from a half-square and a half-equilateral triangle, use complementary angles, and evaluate expressions exactly by rationalising surd denominators.

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