whether(√5+2)²is a rational or irrational number.​

Question

whether(√5+2)²is a rational or irrational number.​

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Allison 3 weeks 2021-11-07T09:03:26+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-07T09:04:31+00:00

    HEY BUDDY!

    Step-by-step explanation:

     { \sqrt{5} + 2 }^{2}

     =  { \sqrt{5} }^{2}  +  {2}^{2}  + 2 \times 2 \times  \sqrt{5}

    (By using an algebraic identity (a+b)^2)

     = 5 + 4 + 4 \sqrt{5}

    9 + 4 \sqrt{5}

    As we know, it is a irrational no.

    Hence, (√5+2)² is an irrational no.

    0
    2021-11-07T09:04:47+00:00

    Answer:

    IT IS IRRATIONAL NUMBER FRIEND!!

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