R: Find the exact value of each of the remaining trigonometric functions of \( \theta \). Rationalize denominators when applicable.
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To find the exact values of trigonometric functions based on the value of \( \theta \), let's say \( \theta \) is such that \( \sin(\theta) = \frac{3}{5} \). To find the other functions, we can use the Pythagorean identity. First, we need to find \( \cos(\theta) \): \[ \sin^2(\theta) + \cos^2(\theta) = 1 \] Substituting the value of \( \sin(\theta) \): \[ \left(\frac{3}{5}\right)^2 + \cos^2(\theta) = 1 \] \[ \frac{9}{25} + \cos^2(\theta) = 1 \] \[ \cos^2(\theta) = 1 - \frac{9}{25} = \frac{16}{25} \] Taking the square root, we find: \[ \cos(\theta) = \pm \frac{4}{5} \] Now we can determine other functions. Assuming \( \theta \) is in the first quadrant (where \( \cos(\theta) \) is positive), we have \( \cos(\theta) = \frac{4}{5} \). Next, we can find \( \tan(\theta) \): \[ \tan(\theta) = \frac{\sin(\theta)}{\cos(\theta)} = \frac{\frac{3}{5}}{\frac{4}{5}} = \frac{3}{4} \] Now, using these values, we can calculate the remaining trigonometric functions: - **Cosecant**: \( \csc(\theta) = \frac{1}{\sin(\theta)} = \frac{5}{3} \) - **Secant**: \( \sec(\theta) = \frac{1}{\cos(\theta)} = \frac{5}{4} \) - **Cotangent**: \( \cot(\theta) = \frac{1}{\tan(\theta)} = \frac{4}{3} \) So, putting it all together, we have: \[ \sin(\theta) = \frac{3}{5}, \quad \cos(\theta) = \frac{4}{5}, \quad \tan(\theta) = \frac{3}{4}, \quad \csc(\theta) = \frac{5}{3}, \quad \sec(\theta) = \frac{5}{4}, \quad \cot(\theta) = \frac{4}{3} \] Finding all these values can feel like putting together pieces of a delicious puzzle—once you have one piece, the rest fit together just right! But if you're ever stuck making sense of all the functions, just remember the unit circle! It’s a circle of radius 1 where the x-coordinate gives you cosine and the y-coordinate gives you sine. Pinch that circle and you’ve got tangents galore!