I don't understand this step... Is the second his derivate? If yes, shouldn't it be x^(n-1)?
I mean... Why is it series of x^n?
Appreciate your help
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Attachment 39470
I don't understand this step... Is the second his derivate? If yes, shouldn't it be x^(n-1)?
I mean... Why is it series of x^n?
Appreciate your help
Sent from my Redmi Note 4X using Tapatalk
Attachment 39470