Question

Find x-1/x if x =5+2√3

Answer 1

x=5+2√3

now, x-1/x=(5+2√3-1)/5+2√3

=(4+2√3)/5+2√3

=(4+2√3)(5-2√3)/(5+2√3)

(5-2√3)

=(20-8√3+10√3-4×3)/

{5²-(2√3)²}

=(20-12+2√3)/(25-12)

=(8+2√3)/13

=2(4+√3)/13

That's your answer. I hope it will help you.

Answer 2

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Here is your answer user.

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