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Mathematics 10 Online
OpenStudy (anonymous):

someone explain first one please

OpenStudy (anonymous):

OpenStudy (anonymous):

cosine is stuck between -1 and 1 right?

OpenStudy (anonymous):

so as \(x\to 0\) the whole thing goes to zero

OpenStudy (anonymous):

your math book probably calls it a "sandwich " but really it is just because x goes to zero and cosine does not blow up maybe it is called squeeze

OpenStudy (anonymous):

oh okay thanks

OpenStudy (anonymous):

so just sub in whatever limit I have ?

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