If - r -0 n a r x - y -2 r - b r y - x -1 r -0- - n - N- then b n is equal toA- anB- -1n anC- -1 n 2 n a nD- 2 n a n

The correct option is B ( 1)nan Take y x 1 = x ⇒ ∑^n_r=0 a_r (1 X)^r = ∑^n_r=0 b_r X^r Equating coefficient of both sides ⇒ b_n = ( 1)^n a_n ...

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Rationalization Method to Remove Indeterminate Form

if ∑ r =0 n a...

Question

if $n \sum r = 0 {a_{r} (x - y + 2)^{r} - b_{r} (y - x - 1)^{r}} = 0, \forall$ n $\in$ N, then $b_{n}$ is equal to

a_n

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(-1)ⁿa_n

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(-1)ⁿ2ⁿa_n

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2ⁿa_n

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