Practicing Success
If \(\theta = \frac{1}{3}\), then find the value of cos \(\theta\). |
\(\frac{\sqrt{2}}{3}\) \(\frac{1}{3}\) \(\frac{2\sqrt{2}}{3}\) \(\frac{2}{3}\) |
\(\frac{2\sqrt{2}}{3}\) |
Cos \(\theta = \sqrt{1 - sin^2 \theta}\) Cos \(\theta = \sqrt{1 - \frac{1}{9}}\) Cos \(\theta = \frac{2\sqrt{2}}{3}\) |