Hi, How can I do that? Express Euler function phi(n) using the Moubilus function miu(n) Thank you!
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Originally Posted by bamby Hi, How can I do that? Express Euler function phi(n) using the Moubilus function miu(n) Thank you! Consider the group . Every element has order a divisor of . Also if then the number of elements that has order is . Therefore, we have that . Since this is true for all by Mobius inversion formula we see that, .
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