First slide

Introduction to limits

Question

$\underset{x \to \frac{π}{2}}{L i m} \frac{\cot x - \cos x}{{(\frac{π}{2} - x)}^{3}} =$

Moderate

A

$\frac{- 1}{2}$
B

$\frac{1}{2}$
C

2
D

-2

Solution

$\lim_{θ \to 0} \frac{c o t θ - c o t θ \cos θ}{θ^{3}}$

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