Answer:
Step-by-step explanation:
Given the trigonometric equation;
cos x =-0.4226
To get the value of x within the range 0° < x < 360°, we need to take the arc cosine of the value as shown;
x = arccos -0.4226
x = 114.99°
x ≈ 115°
Since x is positive in the 4th quadrant, the value of x can also be 360 - [tex]\theta[/tex]
where [tex]\theta = 115^{o}[/tex]
x2 = 360°-115°
x2 = 245°
The value of x within the interval are 115° and 245°
Answer:
The value of x within the interval are 115° and 245°
Step-by-step explanation:
