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If y = axn+1 + b x–n, then \(x^2\frac{d^2y}{dx^2}\) =

A. n(n – 1)y 

B. n(n + 1)y 

C. ny 

D. n2y

1 Answer

+1 vote
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Best answer

Correct Answer is (B) n(n + 1)y

Given:

= n(n+1)[a xn+1 +bx-n]

= n(n+1)y

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