Jes8setickba9by Jes8setickba9by
  • 02-12-2016
  • Mathematics
contestada

Estimate:
√5 + √15

8

4

6

Respuesta :

Thos Thos
  • 02-12-2016
[tex]x= \sqrt{5} + \sqrt{15} [/tex]
[tex] x^{2} =( \sqrt{5} + \sqrt15} )^2[/tex]
= 5 + 15 + 2 √5√5√3
=20 + 10√3
≈20+16
≈36

x≈6
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