Question

if x-1by x =15/4 then find x+1/x=​

Answer 1

Answer:

17/4

Step-by-step explanation:

x-1/x = 15/4

or, (x-1/x)²=(15/4)²

or, (x²-2.x.1/x+1/x²)=225/16

or, x²+1/x² -2 = 225/16

or, x²+1/x² = 225/16 + 2

or, x²+1/x² = 257/16

or, x²+1/x²+2 = 257/16 +2

or, x²+2.x.1/x+1/x² = 289/16

or, (x+1/x)² = (17/4)²

or, x+1/x = 17/4

so, (x+1/x) = 17/4