Find the cotangent of the angle $ heta = frac{pi}{4}$ on the unit circle.
Answer 1
To find the cotangent of $\theta = \frac{\pi}{4}$ on the unit circle:
The cotangent function is given by:
$\cot \theta = \frac{1}{\tan \theta}$
Since $\tan \theta = \frac{\sin \theta}{\cos \theta}$, we first find the values of $\sin \theta$ and $\cos \theta$. For $\theta = \frac{\pi}{4}$:
$\sin \frac{\pi}{4} = \frac{\sqrt{2}}{2}$ and $\cos \frac{\pi}{4} = \frac{\sqrt{2}}{2}$
Then:
$\tan \frac{\pi}{4} = \frac{\sin \frac{\pi}{4}}{\cos \frac{\pi}{4}} = 1$
Thus, the cotangent is:
$\cot \frac{\pi}{4} = \frac{1}{\tan \frac{\pi}{4}} = 1$
So, the answer is:
$\cot \frac{\pi}{4} = 1$
Answer 2
To determine the cotangent of $ heta = frac{pi}{4}$ on the unit circle:
Recall the cotangent identity:
$cot heta = frac{cos heta}{sin heta}$
For $ heta = frac{pi}{4}$, the values of $cos heta$ and $sin heta$ are:
$cos frac{pi}{4} = frac{sqrt{2}}{2}$ and $sin frac{pi}{4} = frac{sqrt{2}}{2}$
Therefore,
$cot frac{pi}{4} = frac{frac{sqrt{2}}{2}}{frac{sqrt{2}}{2}} = 1$
Thus,
$cot frac{pi}{4} = 1$
Answer 3
To find $cot frac{pi}{4}$ on the unit circle:
Use:
$cot heta = frac{cos heta}{sin heta}$
For $ heta = frac{pi}{4}$,
$cos frac{pi}{4} = sin frac{pi}{4} = frac{sqrt{2}}{2}$
So:
$cot frac{pi}{4} = 1$
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