Question

if x-1/x=5,find the value of x square+1/x square ​

Answer 1

Step-by-step explanation:

x-1/x=5

=> (x-1/x)²=5²

=> x²+1/x²-2x×1/x=25

=> x²+1/x²-2=25

=> x²+1/x²=25+2

=> x²+1/x²=27. (answer)

hope you got it.

Answer 2

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