3. Simplify the expression inside the parentheses:
(1)x
4. Therefore, the answer is:
x
So, the final answer is:
x
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Write a math question for the theme "Characteristics of cosine function f(x) = cos x":What is the amplitude, period, and domain of the function f(x) = cos(x)? How many x-intercepts does it have?
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Math question:Find the 3rd derivative of f(x) = sin(2x) - ln(x^2) at x = π/4.