Question

if x=7+4√3,find the value of x^square-1/x^square​

Answer 1

Answer:112√3

Step-by-step explanation:

X = 7+4√3

X^2 = (7+4√3)^2 = 97+56√3

1/x^2 = 1/(7+4√3)^2 = 97-56√3

So,

X^2 - 1/x^2 = (97+56√3) - (97-56√3)

= 56√3 + 56√3

= 112√3

I hope this helps you.