Finf the solution that satisfy
√3secx=-2if 0° ≤x≤360°?
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Mar 27
To solve the equation √3sec(x) = -2, we first need to isolate sec(x) by dividing both sides by √3:
sec(x) = -2/√3
Next, we know that sec(x) is the reciprocal of cos(x), so we can rewrite the equation as:
cos(x) = -√3/2
Now, we need to find the angle x in the interval 0° ≤ x ≤ 360° where the cosine function equals -√3/2. This occurs in the second and third quadrants, where the cosine function is negative.
In the second quadrant, the reference angle for cos(x) = -√3/2 is 30° (cosine of 30° is √3/2). Therefore, x = 180° + 30° = 210°.
In the third quadrant, the reference angle for cos(x) = -√3/2 is also 30°. Therefore, x = 360° - 30° = 330°.
Therefore, the solutions that satisfy the equation √3sec(x) = -2 in the interval 0° ≤ x ≤ 360° are x = 210° and x = 330°.