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Active Prelude to Calculus

Activity 5.1.2.
Complete the following table by entering “\(\infty\text{,}\)”“\(-\infty\text{,}\)”“\(0\text{,}\)” or “no limit” to identify how the function behaves as either \(x\) increases or decreases without bound. As much as possible, work to decide the behavior without using a graphing utility.
\(f(x)\) \(\lim_{x \to \infty} f(x)\) \(\lim_{x \to -\infty} f(x)\)
\(e^x\)    
\(e^{-x}\)    
\(\ln(x)\)    
\(x\)    
\(x^2\)    
\(x^3\)    
\(x^4\)    
\(\frac{1}{x}\)    
\(\frac{1}{x^2}\)    
\(\sin(x)\)