If x= c√b+4 ,find x+1/x

Find value of x+1/x
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1 Answer

1/x=1/(c√(b+4)=√(b+4)/(c(b+4)).

x+1/x=c√(b+4)+√(b+4)/(c(b+4))=√(b+4)(c^2(b+4)+1)/(c(b+4)) in rational form

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