Trigonometry & Inverse Trigonometry
Trigonometric Function Ranges
Grade 11
Question:
<p>Which one of the following function contains only one integer in its range?<br/><small>[Note: sgn(k) denotes the signum function of k.]</small></p><p>(a) \(f(x) = |\cos\frac{1-x^2}{x}|\)</p>
<p>(a) \(f(x) = |\cos\frac{1-x^2}{x}|\)</p>
Step-by-Step Solution
Key Concept: Analyze the range of each function to count how many integers it contains.
<p>No solution provided in source text</p>
Correct Answer: A