mahendrasaini2372 mahendrasaini2372

19-04-2021
Mathematics

contestada

Show
that (2+√3)(2-√3)(5+root2)
(5-root2) is rational number.

Respuesta :

farhanAhmedd farhanAhmedd

19-04-2021

Answer:

(2+3)(2−3)(5+2)(5−2)=>(22−(3)2)(52−(22))=>(4−3)(25−2)=>(1)(23)=>23

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gayanepoghosyan gayanepoghosyan

19-04-2021

(2+√3)(2-√3)(5+ √2)
(5-√2)=(2^2-√3^2)(5^2-√2^2)=(4-3)(25-2)=23 and 23 is rational number

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