A problem with functions defined on positive integers.












0












$begingroup$


enter image description here



Where [x] denotes the greatest integer number, which does not exceed x.



I need some help please. The proof should also be at high school level. Please don’t use hard or complex things.










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$endgroup$












  • $begingroup$
    What does that little mark on the start of the last line mean?
    $endgroup$
    – fleablood
    Dec 13 '18 at 18:09










  • $begingroup$
    I guess "prove that"
    $endgroup$
    – Federico
    Dec 13 '18 at 18:09










  • $begingroup$
    Experimenting, it seems that $f(2^k+k-2)=2^{k-1}$
    $endgroup$
    – Federico
    Dec 13 '18 at 18:10










  • $begingroup$
    Yeah. It means prove that
    $endgroup$
    – furfur
    Dec 13 '18 at 18:15










  • $begingroup$
    The answer says that f(2^k + k - 2)=(2^(k -1))^2
    $endgroup$
    – furfur
    Dec 13 '18 at 18:17


















0












$begingroup$


enter image description here



Where [x] denotes the greatest integer number, which does not exceed x.



I need some help please. The proof should also be at high school level. Please don’t use hard or complex things.










share|cite|improve this question









$endgroup$












  • $begingroup$
    What does that little mark on the start of the last line mean?
    $endgroup$
    – fleablood
    Dec 13 '18 at 18:09










  • $begingroup$
    I guess "prove that"
    $endgroup$
    – Federico
    Dec 13 '18 at 18:09










  • $begingroup$
    Experimenting, it seems that $f(2^k+k-2)=2^{k-1}$
    $endgroup$
    – Federico
    Dec 13 '18 at 18:10










  • $begingroup$
    Yeah. It means prove that
    $endgroup$
    – furfur
    Dec 13 '18 at 18:15










  • $begingroup$
    The answer says that f(2^k + k - 2)=(2^(k -1))^2
    $endgroup$
    – furfur
    Dec 13 '18 at 18:17
















0












0








0





$begingroup$


enter image description here



Where [x] denotes the greatest integer number, which does not exceed x.



I need some help please. The proof should also be at high school level. Please don’t use hard or complex things.










share|cite|improve this question









$endgroup$




enter image description here



Where [x] denotes the greatest integer number, which does not exceed x.



I need some help please. The proof should also be at high school level. Please don’t use hard or complex things.







functions functional-equations






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Dec 13 '18 at 18:02









furfurfurfur

855




855












  • $begingroup$
    What does that little mark on the start of the last line mean?
    $endgroup$
    – fleablood
    Dec 13 '18 at 18:09










  • $begingroup$
    I guess "prove that"
    $endgroup$
    – Federico
    Dec 13 '18 at 18:09










  • $begingroup$
    Experimenting, it seems that $f(2^k+k-2)=2^{k-1}$
    $endgroup$
    – Federico
    Dec 13 '18 at 18:10










  • $begingroup$
    Yeah. It means prove that
    $endgroup$
    – furfur
    Dec 13 '18 at 18:15










  • $begingroup$
    The answer says that f(2^k + k - 2)=(2^(k -1))^2
    $endgroup$
    – furfur
    Dec 13 '18 at 18:17




















  • $begingroup$
    What does that little mark on the start of the last line mean?
    $endgroup$
    – fleablood
    Dec 13 '18 at 18:09










  • $begingroup$
    I guess "prove that"
    $endgroup$
    – Federico
    Dec 13 '18 at 18:09










  • $begingroup$
    Experimenting, it seems that $f(2^k+k-2)=2^{k-1}$
    $endgroup$
    – Federico
    Dec 13 '18 at 18:10










  • $begingroup$
    Yeah. It means prove that
    $endgroup$
    – furfur
    Dec 13 '18 at 18:15










  • $begingroup$
    The answer says that f(2^k + k - 2)=(2^(k -1))^2
    $endgroup$
    – furfur
    Dec 13 '18 at 18:17


















$begingroup$
What does that little mark on the start of the last line mean?
$endgroup$
– fleablood
Dec 13 '18 at 18:09




$begingroup$
What does that little mark on the start of the last line mean?
$endgroup$
– fleablood
Dec 13 '18 at 18:09












$begingroup$
I guess "prove that"
$endgroup$
– Federico
Dec 13 '18 at 18:09




$begingroup$
I guess "prove that"
$endgroup$
– Federico
Dec 13 '18 at 18:09












$begingroup$
Experimenting, it seems that $f(2^k+k-2)=2^{k-1}$
$endgroup$
– Federico
Dec 13 '18 at 18:10




$begingroup$
Experimenting, it seems that $f(2^k+k-2)=2^{k-1}$
$endgroup$
– Federico
Dec 13 '18 at 18:10












$begingroup$
Yeah. It means prove that
$endgroup$
– furfur
Dec 13 '18 at 18:15




$begingroup$
Yeah. It means prove that
$endgroup$
– furfur
Dec 13 '18 at 18:15












$begingroup$
The answer says that f(2^k + k - 2)=(2^(k -1))^2
$endgroup$
– furfur
Dec 13 '18 at 18:17






$begingroup$
The answer says that f(2^k + k - 2)=(2^(k -1))^2
$endgroup$
– furfur
Dec 13 '18 at 18:17












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