Multiple Choice Questions on If X 6 2 radic 6 then what is the value of radic X 1 1 radic X 1 ........ for SSC CGL Exam Preparation

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Multiple Choice Questions

If X 6 2 radic 6 then what is the value of radic X 1 1 radic X 1 ........

Quantitative Aptitude (CGL) Algebra
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    If X=6+2√6, then what is  the value of √(X-1)+1/√(X-1)?

    2√3

    Correct Answer

    3√2

    Incorrect Answer

    2√2

    Incorrect Answer

    3√3

    Incorrect Answer
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    Explanation:

    X=6+2√6
    X-1=5+2√6
    X-1=(√2)2+(√3)2+2*√2*√3=(√2+√3)2
    √(X-1)=√3+√2..........(1)
    1/√(X-1)=√3-√2......(2)
    √(X-1)+1/√(X-1)=2√3

    By: MIRZA SADDAM HUSSAIN
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