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  1. ',
  2. '
  3. ' 2ϳ
  4. Ͳ '
  5. Ҳ '
  6. '
  7. '

' f (x) :

+ ,

an bn ':

an = dx, n = 0,1,2, ...

bn = dx, n = 1,2, ...

f (x) ( ) ( ), ' , S (x) .

:

) f (x) ³ , S (x) = f (x);

) - .

, f (x) = f (-x), bn= 0 :

f (x) = + ,

= cos dx, n = 0,1,2, ...

, f (x) = - f (-x), = 0, :

f (x) = , = dx, n = 1,2,3, ...



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