Tangent of θ is denoted as tanθ and it is the ratio of perpendicular (p) and base (b). ![]() Cosine of θ is denoted as cosθ and it is the ratio of base (b) and hypotenuse (h). Sine of θ is denoted as sinθ and it is the ratio of perpendicular (p) and hypotenuse (h). For this, six trigonometric ratios are defined as below.ġ. In trigonometry, we study the relation between the sides and angles of a right triangle. Trigonometry Formulas : Trigonometric Ratios We can also write it as p 2 = h 2 – b 2 or b 2 = h 2 – p 2. Thus, according to the Pythagorean theorem p 2 + b 2 = h 2. In this triangle, the side opposite to the right angle B is the hypotenuse (h = AC), the side opposite to the angle ACB = θ is the perpendicular (p = AB) and the side BC is the base (b). ![]() ![]() In the figure below, ABC is a right angled triangle with right angle at B. In a right angled triangle, the sum of the square of its perpendicular and the square of its base is equal to the square of the hypotenuse. Trigonometry Formulas : Pythagorean Theorem
0 Comments
Leave a Reply. |