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Mathematics 15 Online
OpenStudy (anonymous):

limit with trig functions: lim x->0 , sec x?..so far i have secx=1/cosx..then idk what to do help!!

OpenStudy (jamesj):

what's the limit as x->0 of cos x?

OpenStudy (anonymous):

1?

OpenStudy (jamesj):

Yes, hence the limit of sec x = 1/cos x is ...

OpenStudy (anonymous):

1???

OpenStudy (jamesj):

yes 1/1 = 1

OpenStudy (anonymous):

got it!! so basically i should memorize the graphs for trig functions?

OpenStudy (jamesj):

That definitely helps.

OpenStudy (anonymous):

koo. thank u james!

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