Math Question
![Consider this equation.
\[
\cos (\theta)=-\frac{7}{8}
\]
If \( \theta \) is an angle in quadrant III, what is the value of \( \tan (\theta) ? \)
A. \( -\frac{\sqrt{15}}{7} \)
B. \( -\frac{\sqrt{15}}{8} \)
C. \( \frac{\sqrt{15}}{8} \)
D. \( \frac{\sqrt{15}}{7} \)](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2022/1/19/7217e038-43b2-4229-bc53-35f6f98571bf.png "Consider this equation.
\[
\cos (\theta)=-\frac{7}{8}
\]
If \( \theta \) is an angle in quadrant III, what is the value of \( \tan (\theta) ? \)
A. \( -\frac{\sqrt{15}}{7} \)
B. \( -\frac{\sqrt{15}}{8} \)
C. \( \frac{\sqrt{15}}{8} \)
D. \( \frac{\sqrt{15}}{7} \)")
Solution
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