Let for . Which of the following is…

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

Let

f(x)=\dfrac{(x^{2}+1)^{2}}{x^{3}}

for

x\neq 0

. Which of the following is

f'(x)

? (a)

1-\dfrac{2}{x^{2}}+\dfrac{3}{x^{4}}

(b)

1-\dfrac{2}{x^{2}}-\dfrac{3}{x^{4}}

(c)

1-\dfrac{2}{x^{2}}

(d)

1+\dfrac{2}{x^{2}}-\dfrac{3}{x^{4}}

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