The following special angles chart show how to derive the trig ratios of 30°, 45° and 60° from the 30-60-90 and 45-45-90 special triangles. Scroll down the page if you need more examples and explanations on how to derive and use the trig ratios of special angles.

Table of Trigonometric Functions – Exact Values for Special Angles Angle θ Values of the trigonometric functions in degrees in radians sin(θ) cos(θ) tan(θ) cot(θ) sec(θ) csc(θ)

Table of values of the 6 trigonometric functions sin (x), cos (x), tan (x), cot (x), sec (x) and csc (x) for special angle values.

Each degree with special angles. This table provides the decimal approximation for each angle from 0° through 90°.

2024年1月10日 · If the reference angle is a special angle (0, 30, 45, 60, 90 degrees), then you can find exact trig values without a calculator. For example, find cos(81 pi/4). Use the RRQSS method.

The table provided in this section will help you to find the values of trigonometric ratios for the special angles 0°, 30°, 45°, 60° and 90°. The values of trigonometric ratios of some special angles are very important to solve many problems in trigonometry.

2015年8月12日 · The special trig angles are 0º, 30º, 45º, 60º, and 90º. What makes these angles special? The 30º-60º-90º triangle is one-half of an equilateral triangle, while the 45º-45º-90º triangle is one-half of a square.

Special Angles and Their Trigonometric Values There are a few key angles whose sine, cosine, and tangent values are particularly important to memorize, as they frequently appear in calculations. These angles are 0°, 30°, 45°, 60°, and 90°, as …

In this article, we will explore the trigonometric ratios for special angles: \(0^\circ\), \(30^\circ\), \(45^\circ\), \(60^\circ\) and \(90^\circ\) as well as introduce \(\text{Cosec}\), \(\text{Sec}\) and \(\text{Cot ratios}\).

2017年10月13日 · Under the O-level additional math syllabus, students are expected to know the values of several trigonometry special angles (Such as Sin30, Cos 45 and Tan 60 etc). The standard chart given in all textbooks and notes will be as follows: Method 1: How to remember?