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Question Number 197549 by dragan91 last updated on 21/Sep/23

$$$$$$solvelimitsforfunctions$$$$f\left(x\right)=cos\left(sgn\left(1/x\right)\right)$$$$f\left(x\right)=sgn\left(cos\left(1/x\right)\right)$$$$$$$$Cansomeonehelp$$$$Thanks$$

Commented by MM42 last updated on 21/Sep/23

$${lim}_{x\to ?}$$

Commented by dragan91 last updated on 23/Sep/23

$$xaproachestoinfinity$$$$$$

Commented by MM42 last updated on 26/Sep/23

$${lim}_{x\to \mathrm{\infty }}cos\left(sgn\left(\frac{1}{x}\right)\right)=cos1$$$${lim}_{x\to \mathrm{\infty }}sgn\left(cos\left(\frac{1}{x}\right)\right)=1$$

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