Question
A formula for the derivative of a function $f$ is given. How many critical numbers does f have?$f^{\prime}(x)=\frac{100 \cos ^{2} x}{10+x^{2}}-1$
Step 1
Critical numbers occur where the derivative is zero or undefined. Here, we have the derivative \( f'(x) = \frac{100 \cos^2 x}{10 + x^2} - 1 \). Show more…
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