Question

Buna cine are timp poate sa ma ajute cu ex asta dificil pentru mine va rog frumos

Answer 1

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√0,(3) = √(3/9) = √3/3

√0,(2) = √(2/9) = √2/3

4/(3√2) =(4√2)/3·2= 2√2/3

Acum, expresia devine:


[tex]\it \left(\dfrac{\sqrt3}{3} + \dfrac{2\sqrt3}{3}\right)\cdot\sqrt3 +\left(\dfrac{\sqrt2}{3}+\dfrac{2\sqrt2}{3}\right)\cdot\sqrt2 = \dfrac{3\sqrt3}{3}\cdot\sqrt3+\dfrac{3\sqrt2}{3}\cdot\sqrt2 \\\;\\ \\\;\\ =\sqrt3\cdot\sqrt3 +\sqrt2\cdot\sqrt2 = 3+2=5[/tex]

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