Question

please answer my question​

Answer 1

Answer:

x=√(√49+4√3)

=√(7+4√3)

=√(4+3+4√3)

=√{(2)^2+2.2.√3+(√3)^2}

=√(2+√3)^2

=2+√3

1/x=1/(2+√3)

=(2-√3)/(2+√3)(2-√3)

=(2-√3)/{(2)^2-(√3)^2}

=(2-√3)/(4-3)

=(2-√3)/1

=2-√3

so ,

x+1/x

=(2+√3)+(2-√3)

=2+√3+2-√3

=4

so (C) is the correct answer