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Calculati:√0,49+√1,96


Răspuns :

Gly
[tex]\sqrt{0,49}+\sqrt{1,96}=\sqrt\dfrac{49}{100}}+\sqrt{\dfrac{196}{100}}=\dfrac{7}{10}+\sqrt{\dfrac{49}{25}}=\dfrac{7}{10}+\dfrac{7}{5}=\dfrac{7+14}{10}=\dfrac{21}{10}=22:10=2,1[/tex]
√0,49+√1,96 =
=√49/100+√196/100
=√7²/10²+√14²/10²
=7/10+14/10
=21/10
=2,1

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