Question

Sketch the graph of the function cos² x in the interval [0, π]

Answer 1

Answer:

Step-by-step explanation:

To sketch the trigonometric function cos² x => (cos x)² in the interval [0,π]

put different values of x in terms of angle

1) x=0°  

 (cos 0°)²=1

2) x= 30°    

(cos 30°)²=(√3/2)²=3/4

3) x= 45°  

(cos 45°)²=(1/√2)²=1/2

4)x= 60°  

(cos 60°)²=(1/2)²=1/4

like that calculate few  values and plot

look at the attatchment.