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Q.

Let f(x)=a0+a1x+a2x2++anxn+ and f(x)1x=b0+b1x+b2x2++bnxn+, then

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a

bn+bn1=an

b

bnbn1=an

c

bn/bn1=an

d

bnbn-1=an

answer is B.

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Detailed Solution

f(x)1x=b0+b1x+b2x2++bnxn+

 a0+a1x+a2x2++anxn+

             =(1x)b0+b1x+b2x2++bnxn+

Comparing the coefficient of xn on both the sides,

an=bnbn1.

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