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If 5f(x)+3f(1/x)=x+2 and y=x f(x), then...

If `5f(x)+3f(1/x)=x+2` and `y=x f(x),` then find `dy/dx` at `x=1`.

A

14

B

`7//8`

C

1

D

None of these

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The correct Answer is:
B
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