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Section 6.3 – Special Angles This booklet belongs to: Block: • Two triangles in trigonometry are especially significant, we can calculate them exactly • They are the 45°−45°−90° triangle and the 30°−60°−90° triangle. The °− °−𝟗𝟎° Triangle
Section 6.3 – General and Special Angles Quadrantal Angles • Quadrantal angle are the easiest to calculate • They are the angles where the terminal arm is on a the −𝒂 . 0°≤𝜃≤360°; 0≤ ≤2𝜋 • The easiest points to choose are from the origin. Where = √ +
Master Trigonometric Ratios for Special Angles in GCE O Level Math. Simplify your understanding of SIN, COS, and TAN.
how to derive and memorize the trigonometric ratios of the special angles, how to use the trig ratios of the special angles to find exact values of expressions involving sine, cosine and tangent values of 0, 30, 45, 60 and 90 degrees, How to find sin, cos, tan, cot, csc, and sec of the special angles, and multiples of 90, How to remember ...
Trigonometric special angles — 30 o, 45 o, and 60 o — generate rather straightforward trigonometric values. We can precisely evaluate the trigonometric functions for these special angles without a calculator.
The special triangles are two triangles that are very easy to work with in trigonometry. The angles are simple to calculate and their sides are easy to determine, so the trig ratios associated with them are easily expressed.
In this article, we will explore the trigonometric ratios for special angles: 0∘, 30∘, 45∘, 60∘ and 90∘ as well as introduce Cosec, Sec and Cot ratios.
