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#1 2016-10-13 14:58:18

Monox D. I-Fly
Member
Registered: 2015-12-02
Posts: 953

[ASK] Limit of Cosine

How to solve

? At first I tried to convert cos x to
but then realized that
only applies if c = 0. So, how?

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#2 2016-10-13 17:53:26

thickhead
Member
Registered: 2016-04-16
Posts: 1,086

Re: [ASK] Limit of Cosine


{1}Vasudhaiva Kutumakam.{The whole Universe is a family.}
(2)Yatra naaryasthu poojyanthe Ramanthe tatra Devataha
{Gods rejoice at those places where ladies are respected.}

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#3 2016-10-13 19:21:17

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,131
Website

Re: [ASK] Limit of Cosine

Alternatively, use L'Hopital's rule.

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#4 2016-10-14 15:37:20

Monox D. I-Fly
Member
Registered: 2015-12-02
Posts: 953

Re: [ASK] Limit of Cosine

Unfortunately, the target readers haven't learned derivatives yet, so L'Hopital's rule is a no.

Thanks for thickhead.

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