Math Problem Statement
Nilai dari lim x -> 1/4 * pi (cos x - sin x)/(x - 1/4 * pi) adalah ...
Solution
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Math Problem Analysis
Mathematical Concepts
Calculus
Limits
L'Hôpital's Rule
Trigonometry
Formulas
L'Hôpital's Rule: \lim_{x \to c} \frac{f(x)}{g(x)} = \lim_{x \to c} \frac{f'(x)}{g'(x)} if \frac{0}{0} or \frac{\infty}{\infty}
Trigonometric identities: \sin \frac{\pi}{4} = \cos \frac{\pi}{4} = \frac{\sqrt{2}}{2}
Theorems
L'Hôpital's Rule
Suitable Grade Level
Grades 11-12 or Calculus I (College Level)