Question

if x-1/x=15/4 then what is x+1/x=?​

Answer 1

Step-by-step explanation:

x-1/x = 15/4

squaring on both side

x^2 -1/x^2 -2 =225/16

adding four on both side

x^2 -1/x^2 +2 = 289/16

(x+1/x)^2 = (17/4)^2

x + 1/x = 17/4