Trigonometry Graphs
Sin θ
- Quadrant wise value of sin θ
- 1st Quadrant (0° to 90°): Increases from 0 to 1
- 2nd Quadrant (90° to 180°): Decreases from 1 to 0
- 3rd Quadrant (180° to 270°): Decreases from 0 to -1
- 4th Quadrant (270° to 360°): Increases from -1 to 0
Cos θ
- Quadrant wise value of cos θ
- 1st Quadrant (0° to 90°): Decreases from 1 to 0
- 2nd Quadrant (90° to 180°): Decreases from 0 to -1
- 3rd Quadrant (180° to 270°): Increase from -1 to 0
- 4th Quadrant (270° to 360°): Increases from 0 to 1
Tan θ
- Quadrant wise value of tan θ
- 1st Quadrant (0° to 90°): Increases from 0 to ∞
- 2nd Quadrant (90° to 180°): Increases from -∞ to 0
- 3rd Quadrant (180° to 270°): Increase from 0 to ∞
- 4th Quadrant (270° to 360°): Increases from -∞ to 0
Cosec θ, Sec θ & Cot θ
The graphs of Cosec θ, Sec θ & Cot θ are not much important we must only understand the range between which the values of these functions occur, the ranges have been discussed in the maxima-minima section of this course.
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