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ganeshie8 (ganeshie8):
@ikram002p
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OpenStudy (danielbarriosr1):
What?
ganeshie8 (ganeshie8):
prove \(\large n = \sum \limits_{d | n} \phi(d)\)
ganeshie8 (ganeshie8):
im not getting this proof... can u explain me plz ?
OpenStudy (ikram002p):
cud u take a snap for the qs i cant see equations here and yess ill explain to u
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ganeshie8 (ganeshie8):
@eliassaab @mukushla @Jonask
OpenStudy (anonymous):
That is a classical result in number theory http://www.proofwiki.org/wiki/Sum_of_Euler_Phi_Function_over_Divisors
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