Questions: Find the exact value of tan^(-1)(1/sqrt(3)).
a) -pi/3
b) pi/4
c) pi/3
d) pi/6
Transcript text: 14) Find the exact value of $\tan ^{-1}\left(\frac{1}{\sqrt{3}}\right)$.
a) $-\frac{\pi}{3}$
b) $\frac{\pi}{4}$
c) $\frac{\pi}{3}$
d) $\frac{\pi}{6}$
Solution
Solution Steps
To find the exact value of \(\tan^{-1}\left(\frac{1}{\sqrt{3}}\right)\), we need to determine the angle whose tangent is \(\frac{1}{\sqrt{3}}\). We can use known values of tangent for common angles to identify this. The angle that satisfies this condition is \(\frac{\pi}{6}\).
Step 1: Determine the Angle
To find the exact value of \( \tan^{-1}\left(\frac{1}{\sqrt{3}}\right) \), we need to identify the angle \( \theta \) such that \( \tan(\theta) = \frac{1}{\sqrt{3}} \).
Step 2: Identify the Angle
From trigonometric values, we know that:
\[
\tan\left(\frac{\pi}{6}\right) = \frac{1}{\sqrt{3}}
\]
Thus, the angle \( \theta \) that satisfies \( \tan(\theta) = \frac{1}{\sqrt{3}} \) is \( \frac{\pi}{6} \).
Step 3: Conclusion
Since \( \tan^{-1}\left(\frac{1}{\sqrt{3}}\right) = \frac{\pi}{6} \), we can confirm that this corresponds to option d) in the multiple-choice question.