Is there a continuous function satisfy following conditions?

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Is there a continuous function satisfy folloing conditions? and why?



$$int_0^1 f(x) dx = int_0^1 xf(x) dx = int_0^1 x^2f(x) dx = 0$$



with $f(0)=1$










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  • What are your thoughts? Is this an assignment give to you? Maybe there are some methods which were given to you recently which would work here?
    – Yuriy S
    49 mins ago










  • $f(x)=0$ is a trivial answer.
    – Piquito
    30 mins ago










  • @Piquito $f(0)$ must be 1.
    – Tito Eliatron
    29 mins ago










  • Right! Thanks you.
    – Piquito
    16 mins ago














up vote
1
down vote

favorite
2












Is there a continuous function satisfy folloing conditions? and why?



$$int_0^1 f(x) dx = int_0^1 xf(x) dx = int_0^1 x^2f(x) dx = 0$$



with $f(0)=1$










share|cite|improve this question























  • What are your thoughts? Is this an assignment give to you? Maybe there are some methods which were given to you recently which would work here?
    – Yuriy S
    49 mins ago










  • $f(x)=0$ is a trivial answer.
    – Piquito
    30 mins ago










  • @Piquito $f(0)$ must be 1.
    – Tito Eliatron
    29 mins ago










  • Right! Thanks you.
    – Piquito
    16 mins ago












up vote
1
down vote

favorite
2









up vote
1
down vote

favorite
2






2





Is there a continuous function satisfy folloing conditions? and why?



$$int_0^1 f(x) dx = int_0^1 xf(x) dx = int_0^1 x^2f(x) dx = 0$$



with $f(0)=1$










share|cite|improve this question















Is there a continuous function satisfy folloing conditions? and why?



$$int_0^1 f(x) dx = int_0^1 xf(x) dx = int_0^1 x^2f(x) dx = 0$$



with $f(0)=1$







functions






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share|cite|improve this question













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edited 11 mins ago









Tito Eliatron

359114




359114










asked 58 mins ago









Dinzosm

83




83











  • What are your thoughts? Is this an assignment give to you? Maybe there are some methods which were given to you recently which would work here?
    – Yuriy S
    49 mins ago










  • $f(x)=0$ is a trivial answer.
    – Piquito
    30 mins ago










  • @Piquito $f(0)$ must be 1.
    – Tito Eliatron
    29 mins ago










  • Right! Thanks you.
    – Piquito
    16 mins ago
















  • What are your thoughts? Is this an assignment give to you? Maybe there are some methods which were given to you recently which would work here?
    – Yuriy S
    49 mins ago










  • $f(x)=0$ is a trivial answer.
    – Piquito
    30 mins ago










  • @Piquito $f(0)$ must be 1.
    – Tito Eliatron
    29 mins ago










  • Right! Thanks you.
    – Piquito
    16 mins ago















What are your thoughts? Is this an assignment give to you? Maybe there are some methods which were given to you recently which would work here?
– Yuriy S
49 mins ago




What are your thoughts? Is this an assignment give to you? Maybe there are some methods which were given to you recently which would work here?
– Yuriy S
49 mins ago












$f(x)=0$ is a trivial answer.
– Piquito
30 mins ago




$f(x)=0$ is a trivial answer.
– Piquito
30 mins ago












@Piquito $f(0)$ must be 1.
– Tito Eliatron
29 mins ago




@Piquito $f(0)$ must be 1.
– Tito Eliatron
29 mins ago












Right! Thanks you.
– Piquito
16 mins ago




Right! Thanks you.
– Piquito
16 mins ago










2 Answers
2






active

oldest

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up vote
4
down vote



accepted










If you try $f(x)=ax^3+bx^2+cx+1$, then you have three linear equations in three unknowns.



$$beginalign
frac14a+frac13b+frac12c+1&=0\
frac15a+frac14b+frac13c+frac12&=0\
frac16a+frac15b+frac14c+frac13&=0
endalign$$



See if there is a solution to this system.






share|cite|improve this answer



























    up vote
    0
    down vote













    The most trivial function I can think of is $$fbegincases 1,x=0\0,xne0endcases$$






    share|cite|improve this answer




















    • I suppose $f$ is continuous he wants?
      – AdditIdent
      37 mins ago










    • Maybe, but that was not asked in the question
      – Andrei
      36 mins ago










    • I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
      – projectilemotion
      18 mins ago










    Your Answer





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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    4
    down vote



    accepted










    If you try $f(x)=ax^3+bx^2+cx+1$, then you have three linear equations in three unknowns.



    $$beginalign
    frac14a+frac13b+frac12c+1&=0\
    frac15a+frac14b+frac13c+frac12&=0\
    frac16a+frac15b+frac14c+frac13&=0
    endalign$$



    See if there is a solution to this system.






    share|cite|improve this answer
























      up vote
      4
      down vote



      accepted










      If you try $f(x)=ax^3+bx^2+cx+1$, then you have three linear equations in three unknowns.



      $$beginalign
      frac14a+frac13b+frac12c+1&=0\
      frac15a+frac14b+frac13c+frac12&=0\
      frac16a+frac15b+frac14c+frac13&=0
      endalign$$



      See if there is a solution to this system.






      share|cite|improve this answer






















        up vote
        4
        down vote



        accepted







        up vote
        4
        down vote



        accepted






        If you try $f(x)=ax^3+bx^2+cx+1$, then you have three linear equations in three unknowns.



        $$beginalign
        frac14a+frac13b+frac12c+1&=0\
        frac15a+frac14b+frac13c+frac12&=0\
        frac16a+frac15b+frac14c+frac13&=0
        endalign$$



        See if there is a solution to this system.






        share|cite|improve this answer












        If you try $f(x)=ax^3+bx^2+cx+1$, then you have three linear equations in three unknowns.



        $$beginalign
        frac14a+frac13b+frac12c+1&=0\
        frac15a+frac14b+frac13c+frac12&=0\
        frac16a+frac15b+frac14c+frac13&=0
        endalign$$



        See if there is a solution to this system.







        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered 32 mins ago









        alex.jordan

        37.6k559117




        37.6k559117




















            up vote
            0
            down vote













            The most trivial function I can think of is $$fbegincases 1,x=0\0,xne0endcases$$






            share|cite|improve this answer




















            • I suppose $f$ is continuous he wants?
              – AdditIdent
              37 mins ago










            • Maybe, but that was not asked in the question
              – Andrei
              36 mins ago










            • I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
              – projectilemotion
              18 mins ago














            up vote
            0
            down vote













            The most trivial function I can think of is $$fbegincases 1,x=0\0,xne0endcases$$






            share|cite|improve this answer




















            • I suppose $f$ is continuous he wants?
              – AdditIdent
              37 mins ago










            • Maybe, but that was not asked in the question
              – Andrei
              36 mins ago










            • I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
              – projectilemotion
              18 mins ago












            up vote
            0
            down vote










            up vote
            0
            down vote









            The most trivial function I can think of is $$fbegincases 1,x=0\0,xne0endcases$$






            share|cite|improve this answer












            The most trivial function I can think of is $$fbegincases 1,x=0\0,xne0endcases$$







            share|cite|improve this answer












            share|cite|improve this answer



            share|cite|improve this answer










            answered 37 mins ago









            Andrei

            8,9762923




            8,9762923











            • I suppose $f$ is continuous he wants?
              – AdditIdent
              37 mins ago










            • Maybe, but that was not asked in the question
              – Andrei
              36 mins ago










            • I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
              – projectilemotion
              18 mins ago
















            • I suppose $f$ is continuous he wants?
              – AdditIdent
              37 mins ago










            • Maybe, but that was not asked in the question
              – Andrei
              36 mins ago










            • I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
              – projectilemotion
              18 mins ago















            I suppose $f$ is continuous he wants?
            – AdditIdent
            37 mins ago




            I suppose $f$ is continuous he wants?
            – AdditIdent
            37 mins ago












            Maybe, but that was not asked in the question
            – Andrei
            36 mins ago




            Maybe, but that was not asked in the question
            – Andrei
            36 mins ago












            I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
            – projectilemotion
            18 mins ago




            I gave a similar suggestion to this earlier, but the OP seems to have updated their question.
            – projectilemotion
            18 mins ago

















             

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