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  1. #1
    Registered User
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    !

    n- .
    :
    =x.sin2x + 1

    ( ) ?

    . ...

  2. #2
    Defender Kaspirtov's Avatar
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    Quote Originally Posted by Plebeian View Post
    !

    n- .
    :
    =x.sin2x + 1

    ( ) ?

    . ...
    ... ?! (=0), n - , ( n- => n ):
    http://en.wikipedia.org/wiki/Linear_...ntial_equation
    " , , , , ."

  3. #3

  4. #4
    Defender Kaspirtov's Avatar
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    Quote Originally Posted by Plebeian View Post
    . ...

    (cos2x sin2x), /btw "" , - / , .. :

    C1' cos2x + C2'sin2x = 0
    C1'(cos2x)' + C2'(sin2x)' = xsin2x +1,

    C1' 2', C1 2, .

    : y = C1cos2x + C2sin2x, C1 2

    P.S. "" - :
    C1' ^(2ix) + C2'^(-2ix) = 0
    C1'(^(2ix))' + C2'(^(-2ix))' = x^(-2ix) +1,
    " , , , , ."

  5. #5
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    , 6 . .2 , , :∫(x-1)dx/x2-3x-10. 0 ∫(na vtora stepen)2xdxne mi rabpti worda i zatova gi pi6a taka,neopredelen integral ot 1 do 0 ∫dx varhu koren ot 5x+3,∫xcosx varhu2.dx,∫xarcsinx.dx,i neopredelen ot 4 do 0 ∫(koren ot x varhu (koren ot x) +1).dx

  6. #6
    Ronnie James Dio Snow's Avatar
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  7. #7
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    , . .2 , , :∫(x-1)dx/x2-3x-10; n 0 ∫sin(na vtora stepen)2xdx(ne mi rabpti worda i zatova gi pi6a taka);neopredelen integral ot 1 do 0 ∫dx varhu koren ot 5x+3;∫xcosx varhu2.dx;∫xarcsinx.dx;i neopredelen ot 4 do 0 ∫(koren ot x varhu (koren ot x) +1).dx

  8. #8
    Reigsetder Ures Roland's Avatar
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    . - - 5
    The holiday was fun-packed,
    The contract, still intact

  9. #9
    Defender Kaspirtov's Avatar
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    Quote Originally Posted by anibalhanibal View Post

    , . .2 , , :∫(x-1)dx/x2-3x-10; n 0 ∫sin(na vtora stepen)2xdx(ne mi rabpti worda i zatova gi pi6a taka);neopredelen integral ot 1 do 0 ∫dx varhu koren ot 5x+3;∫xcosx varhu2.dx;∫xarcsinx.dx;i neopredelen ot 4 do 0 ∫(koren ot x varhu (koren ot x) +1).dx
    , ?!
    , . A - . :-P
    " , , , , ."

  10. #10
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    p.s. , , ,

  11. #11
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    6

  12. #12
    Registered User el_barbudo's Avatar
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    , ! ...

  13. #13
    Registered User George's Avatar
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    .
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