UnkleRhaukus
  • UnkleRhaukus
Exercises on Fourier Series
Differential Equations
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
UnkleRhaukus
  • UnkleRhaukus
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UnkleRhaukus
  • UnkleRhaukus
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UnkleRhaukus
  • UnkleRhaukus
have i made any mistakes

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perl
  • perl
hey uncle, looks good
UnkleRhaukus
  • UnkleRhaukus
\[\large\color{teal}{\ddot\smile}\]
perl
  • perl
how did you get these on pdf? very nicely done
UnkleRhaukus
  • UnkleRhaukus
a program called TeXShop
perl
  • perl
very nice, are you a professor?
perl
  • perl
i am stumped on a question, freaking book of mine , Prove that if there is an injection f : A -> A which is not surjective, then A is not a fi nite set. . . . . . . . . . .
UnkleRhaukus
  • UnkleRhaukus
im a only a student
perl
  • perl
wow
perl
  • perl
is this a differential equations class >?
perl
  • perl
i never learned fourier series :(
UnkleRhaukus
  • UnkleRhaukus
yeah from DE class
anonymous
  • anonymous
uncle is there an exercise on proving trigonometric identities?
UnkleRhaukus
  • UnkleRhaukus
|dw:1356168122187:dw|
experimentX
  • experimentX
@perl the difference between fine and infinite set is that the infinite set is that the infinite set will be equivalent to some proper subset of itself. i.e. if there is injection f:A->A ... means the set is equivalent to some proper subset (due to surjective). Which means the set A is not finite.
experimentX
  • experimentX
@UnkleRhaukus do you have Mathematica ( i bet you have matlab)? Plot these infinite series, if these infinite series is equal to your function, then your work is right!!
UnkleRhaukus
  • UnkleRhaukus
i do not have Mathematica i do have Matlab i checked these on a program called Grapher, and they turned out right , but that dosen't mean i haven't made mistakes
experimentX
  • experimentX
if you have identical function ... except at the point of discontinuity then your work is correct!!

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