Math Is Fun Forum

Monox D. I-Fly

Member

From: Indonesia

Registered: 2015-12-02

Posts: 2,000

[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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May his adventurous soul rest in peace at heaven.

thickhead

Member

Registered: 2016-04-16

Posts: 1,086

Re: [ASK] Limit of Cosine

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zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,440

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Re: [ASK] Limit of Cosine

Alternatively, use L'Hopital's rule.

Monox D. I-Fly

Member

From: Indonesia

Registered: 2015-12-02

Posts: 2,000

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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Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.