If 4x+1/x=5,x\neq0, then the value of \frac{5x}{4x^2+10x+1} is

RRB Junior Engineer Stage 1 Model Papers 6

Question : 28 of 99

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4x+1/x=5,x≠0

, then the value of

{5x}/{4x^2+10x+1}

Solution:

4x+1/x=5

⇒4x^2+1=5x

{5x}/{4x^2+10x+1}={5x}/{10x+5x}

⇒{5x}/{15x}=1/3

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