Question

X= √(7+4√3) find x^2+1/x^2

Answer 1

Step-by-step explanation:

[√(7+4√3)]^2 + 1/[√(7+4√3)]^2

(7+4√3) + 1/(7+4√3)

[(7+4√3)^2+1]/(7+4√3)

[49+48+56√3+1]/(7+4√3)

[98+56√3]/(7+4√3)