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Va rog frumos dau coroana​

Va Rog Frumos Dau Coroana class=

Răspuns :

Răspuns:

[tex]\boldsymbol{ \red{ 57 }}[/tex]

Explicație pas cu pas:

[tex]3 - 2 \cdot [(-2^{54}) \cdot (3^{35})^2 : (2^{51} \cdot 3^{69}) - 4^{17} : 2^{33} - 35^0] =[/tex]

[tex](3^{35})^2=3^{35\cdot2}=3^{70}[/tex]

[tex]4^{17} = (2^2)^{17} = 2^{2\cdot17}=2^{34}[/tex]

[tex]35^0=1[/tex]

[tex]= 3 - 2 \cdot [-2^{54} \cdot 3^{70} : (2^{51} \cdot 3^{69}) - 2^{34} : 2^{33} - 1] \\[/tex]

[tex]= 3 - 2 \cdot (-2^{54-51} \cdot 3^{70-69} - 2^{34-33} - 1)[/tex]

[tex]= 3 - 2 \cdot (-2^{3} \cdot 3^{1} - 2^{1} - 1)[/tex]

[tex]= 3 - 2 \cdot (-8 \cdot 3 - 2 - 1)[/tex]

[tex]= 3 - 2 \cdot (-24 - 2 - 1)[/tex]

= 3 - 2 \cdot (-27)

= 3 + 54

= 57

Reținem:

Regulile de calcul cu puteri:

[tex]\boxed{ \boxed{ \boldsymbol{ a^{m} \cdot a^{n} = a^{m + n} }} \ \boxed{ \boldsymbol{ a^{m} : a^{n} = a^{m - n} }} }[/tex]

[tex]\boxed{\boxed{ \boldsymbol{ (a^{m})^{n} = a^{m \cdot n} }}}[/tex]

[tex]\it =3-2\cdot\bigg(\dfrac{-2^{54}\cdot3^{70}}{2^{51}\cdot3^{69}}-2^{34}:2^{33}-1\bigg)=3-2\cdot(-8\cdot3-2-1)=\\ \\ \\ =3-2\cdot(-24-2-1)=3-2\cdot(-27)=3+54=57[/tex]