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anonymous
 3 years ago
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anonymous
 3 years ago
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abb0t
 3 years ago
Best ResponseYou've already chosen the best response.0Is this a medical emergency? If so, please call your local emergency number.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0These are the pictures that I've uploaded for my question

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0oh glob, sorry i cant help, thats too hard, bye. :)

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

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Yeah, noob google series expansion of hyperbolic cosine and sine

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0So 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.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0how about first one??

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