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abb0t Group TitleBest ResponseYou've already chosen the best response.0
Is this a medical emergency? If so, please call your local emergency number.
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
it's math emergency
 one year ago

lillybeth123 Group TitleBest ResponseYou've already chosen the best response.0
wats ur question?
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
These are the pictures that I've uploaded for my question
 one year ago

lillybeth123 Group TitleBest ResponseYou've already chosen the best response.0
oh glob, sorry i cant help, thats too hard, bye. :)
 one year ago

abb0t Group TitleBest ResponseYou've already chosen the best response.0
I vaguely remember doing this, but I think you want to use the exponential form of cosh and sinh to prove it.
 one year ago

cblrtopas Group TitleBest ResponseYou've already chosen the best response.0
Yeah, noob google series expansion of hyperbolic cosine and sine
 one year ago

cblrtopas Group TitleBest ResponseYou've already chosen the best response.0
So sin z is equal to some summation. You multiply it by i. Work out a few terms in the summation making sure to remember that i^2=1 and try to simplify it to look like the sinh z formula.
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
how about first one??
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
For 1 < p < 1 prove that \[\sum_{n=0 }^{\infty} p^{n}\cos nx =\frac{ 1= pcos x }{ 12pcosx + p^2 }\]
 one year ago

cblrtopas Group TitleBest ResponseYou've already chosen the best response.0
bleh too much effort
 one year ago
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