Gráfica De La Función Coseno
How to Sketch the Graph of y = cos(x)
Introduction to Graphing Cosine Function
- The video begins with a brief explanation of how to sketch the graph of y = cos(x), noting its similarity to the sine function with slight differences.
Dividing the X-Axis
- The x-axis is divided into key points:
- pi/2
- pi
- 3pi/2
- 2pi
- Negative values are also marked:
- -pi/2
- -pi
- -3pi/2
- -2pi
Understanding Amplitude and Range
- The amplitude of the cosine function is established as oscillating between +1 and -1, starting from y = 1 when x = 0.
Key Points for Graphing
- Important points for plotting:
- At x = pi/2, y = 0.
- At x = pi, y = -1.
- At x = 3pi/2, returns to y = 0.
- At x = 2pi, it returns to y = +1.
Completing the Graph