Question

ifx - 7+ 4√3 then find the value of x +
1/x
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Answer 1

Answer:

x+1/x = (7-4√3) + 1 / (7-4√3)

= {(7-4√3)^2 + 1} / (7-4√3)

= ( 49–56√3+48 + 1 ) / (7-4√3)

= ( 98–56√3 ) / (7-4√3)

= 14 ( 7-4√3 ) / ( 7-4√3 ) = 14