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What happens if you try to use I'Hospital's Rule to find the limit? Evaluate the limit using another method.$\lim _{x \rightarrow(\pi / 2)^{-}} \frac{\sec x}{\tan x}$

$\lim _{x \rightarrow \frac{\pi}{2}} \frac{\sec x}{\tan x}=1$

Calculus 1 / AB

Chapter 4

Applications of Derivatives

Section 3

L'Hospital's Rule: Comparing Rates of Growth

Differentiation

Harvey Mudd College

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