if x/1-1/x=15/4 then find the value of x/1+1/x
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x/1=x
(x-1/x)^2=x^2+1/x^2+2
(15/4)^2=x^2+1/x^2+2
225/7-2=x^2-1/x^2
211/7
(x+1/x)^2=x^2+1/x^2+2
(x+1/x)^2=211/7+2
x+1/x=15/root7
(x-1/x)^2=x^2+1/x^2+2
(15/4)^2=x^2+1/x^2+2
225/7-2=x^2-1/x^2
211/7
(x+1/x)^2=x^2+1/x^2+2
(x+1/x)^2=211/7+2
x+1/x=15/root7
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