anonymous
  • anonymous
How to get the right side ?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
goformit100
  • goformit100
its easy, take inequality in use
lgbasallote
  • lgbasallote
there was once a famous quote..."one must go left to turn right"

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
I know how to get the left side but I am having a hard time to get the right one :)
lgbasallote
  • lgbasallote
this is proving yes?
anonymous
  • anonymous
no , i am trying to solve a fourier series of sawtooth function. and this bn coefficient
lgbasallote
  • lgbasallote
hmm interesting
lgbasallote
  • lgbasallote
i believe this is @hartnn 's specialty yes?
anonymous
  • anonymous
I am new i do not know nobody in here :(
hartnn
  • hartnn
speciality ? no. M7, what is cos pi = ?
anonymous
  • anonymous
just have a look to this example in wikibidia http://en.wikipedia.org/wiki/Fourier_series
hartnn
  • hartnn
what is cos pi ?
anonymous
  • anonymous
cos pi ? it's -1 ..
hartnn
  • hartnn
and cos 2pi = ?
anonymous
  • anonymous
one
hartnn
  • hartnn
cos 3pi = ?
anonymous
  • anonymous
:) .. well what is your point ?
hartnn
  • hartnn
see the pattern .... cos n*pi = ?
hartnn
  • hartnn
cos 1pi = -1 cos 2pi = 1 cos 3pi = -1 cos 4pi = 1
anonymous
  • anonymous
yeah i see it's 1,-1,1 and so on
hartnn
  • hartnn
so cos n*pi= ?
anonymous
  • anonymous
Under which topic in math can i find such examples ..
hartnn
  • hartnn
just use generalization : cos n*pi = \(\huge (-1)^n\)
hartnn
  • hartnn
when i put 1, i get -1, when i put n=2, i get +1 and so o n
anonymous
  • anonymous
Awesome
hartnn
  • hartnn
and -cos (n*pi) = (-1)(-1)^n = ?
hartnn
  • hartnn
and i think sin n*pi will be easier for you to figure out
anonymous
  • anonymous
Hartnn thank you so much, you saved my life :)
hartnn
  • hartnn
welcome ^_^

Looking for something else?

Not the answer you are looking for? Search for more explanations.