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paranteza 1 intreg 1 asupra 5 paranteza la puterea minus 2

Răspuns :

Răspuns:

Explicație pas cu pas:

Vezi imaginea MAMA80

Salut,

[tex]1\dfrac{1}5=\dfrac{1\cdot 5+1}5=\dfrac{6}5.[/tex]

[tex]\left(\dfrac{6}5\right)^{-2}=\dfrac{1}{\left(\dfrac{6}5\right)^{+2}}=\left(\dfrac{5}6\right)^{+2}=\dfrac{5^2}{6^2}=\dfrac{25}{36}.[/tex]

Green eyes.