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Let f(x)=a0+a1x+a2x^2++an x^n+ and (f(x...

Let `f(x)=a_0+a_1x+a_2x^2++a_n x^n+` and `(f(x))/(1-x)=b_0+b_1x+b_2x^2++b_n x^n+` , then `b_n+b_(n-1)=a_n` b. `b_n-b_(n-1)=a_n` c. `b_n//b_(n-1)=a_n` d. none of these

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