Question 49: Let the function \(y = f\left( x \right)\) be continuous on \(\mathbb{R}\) and have a table considering the sign \(f’\left( x \right)\) as follows The function \(y = f\left( x \right)\) has how many extremes?
Based on the variable table, we see that the function \(y = f\left( x \right)\) has 2 extreme points.
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