Question

if (×+1/×)=5. find the value of ×2+1/×2​

Answer 1

Answer:

Given x + 1 /x ) = 5

We need to find X2+ 1 / x2

( x + 1 / x )2 = 25

= x2 + 1 / x2 + 2 (x)(1)(1/x) =25

= x2 + 1/x2 + 2 = 25

= X2 + 1 / x2 = 25 – 2

= X2+ 1 / x2=23

Hence X2+ 1 / x2= 23

Step-by-step explanation:

Please mark brailiest

Answer 2

Answer:

-15

Step-by-step explanation:

(x+1/x)=5

by cross multiplication

x+1=5x

1=5x-x

1=4x

x=1/4

x^2+1/x^2

by putting the value of x -->(i.e  x=1/4)

(1/4)^2-1/(1/4)^2

(1/16)-1/(1/16)

1-16/16/1/16

-15/1

-15 is the answer