if x=5+2√6 find the value of (x+1/x)^2 ?

Question

if x=5+2√6 find the value of (x+1/x)^2 ?

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Emery 1 week 2021-09-09T05:20:48+00:00 1 Answer 0 views 0

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    2021-09-09T05:22:31+00:00

    Answer:

    x=5-2√6

    Then 1/x=5+2√6. ( by rationalization)

    (5-2√6)²+(5+2√6)²

    25+24-20√6+ 25+ 24+20√6

    25+24+25+24

    50+48

    98 is your answer

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