If 0 ≤ θ ≤ 360o, then the values for different trigonometric ratios will be as follows:
We divide the angle at a point (i.e. 360°) into 4 parts called quadrants. In the first quadrant all the trigonometric ratios are positive.
Example.2 If cot A , find the value of 3 cos A + 4 sin A, where A is in the first quadrant.
Example.3 Find the value of
= 1 + 1 - 1 = 1
Table: Values of trigonometric Ratio for some special angles.
➢ Sine Rule
➢ Cosine Rule
➢ Area of Triangle
|1. What are the basic trigonometric ratios?|
|2. How are angles and their relationship important in trigonometry?|
|3. What are the properties of triangles in trigonometry?|
|4. Can you provide an example of a trigonometry problem involving angles and their relationship?|
|5. How do trigonometric ratios help in real-world applications?|