The value of theta has a 30-degree reference angle and is located in Quadrant II or IV.
Given to us

<h3>What is the value of

?</h3>
To know the value
we will simplify the given expression,

Hence, the value of theta is 30°.
<h3>Finding the location of the - tan30°?</h3>
To know that the location of the -tan30°,

As the value is negative, therefore, there can be two cases,
Case I: when the value of Sin30° is negative,
Case II: when the value of cos30° is negative.
Case I: when the value of Sin30° is negative,
If the value of Sin30° is negative, while the value of cos30° is positive, the θ will lie in the fourth quadrant.
Case II: when the value of Cos30° is negative,
If the value of Cos30° is negative, while the value of Sin30° is positive, the θ will lie in the second quadrant.
Hence, the value of theta has a 30-degree reference angle and is located in Quadrant II or IV.
Learn more about Quadrants:
brainly.com/question/350459