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C0C1(1+nx1+x)+C2((1+nx)21+2x)C3((1+nx)31+3x)+.........=0

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1
1.618 ·

Check if i'm wrong anywhere..

r=0n(1)rCrn(1+nx)r1+rx

= r=0n(1)r Crn(1+nx)r1 + r=0n(1)rrnCr1n1(1+nx)rrx

Solving further...we get,

(11+nx1)n1+nxnx(11+nx1)n1

Which gives,

(1+nxnx)n(1+nxnx)n=0

I skipped a step

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