Question

if X+1/X=4 ,then the value of x^2+1/x^2​

Answer 1

Answer:

( x + 1/x )^2 = x^2 + 1/x^2 + 2 × x × 1/x

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

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

14=x^2+1/x^2