Question

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

Answer 1

Answer:

X = 7-4√3 then, 1/x = 1/ 7-4√3 = 1/ 7-4√3 × 7+4√3 /7+4√3 = 7+4√3 / (7)² - (4√3)² = 7+4√3 / 49 -48 = 7+4√3 /1 = 7+4√3 then we find the value of x +1/x = 7-4√3 +7+4√3 = 14