This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.

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Welcome back woman — missed you this week.
To solve this problem, we will use a trigonometric identity.
Step 1: Recall the trigonometric identity for . The identity states that for any angle ,
Step 2: Apply the identity to the given expression. In this problem, . So, we can write:
Step 3: Substitute the given value of . We are given that . Substituting this value:
Comparing this result with the given options, it matches option C.
The final answer is .
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Welcome back woman — missed you this week. To solve this problem, we will use a trigonometric identity.
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.