Question

DAU COROANA......va rog ​

Answer 1

Răspuns:

Explicație pas cu pas:

a) 6⁴² : ( 2⁴¹ x 3⁴⁰ ) =

= (2x3)⁴² : (2⁴¹x3⁴⁰) =

= (2⁴² x 3⁴²) x 1/(2⁴¹x3⁴⁰) =

= 2⁽⁴²⁻⁴¹⁾ x 3⁽⁴²⁻⁴⁰⁾ =

= 2¹x3² =

= 2x9 =

= 18

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b) ( 2⁵⁰ x 5⁴⁹) : 10⁴⁸ =

= 2 x (2x5)⁴⁹ : 10⁴⁸ =

= 2x10⁴⁹x1/10⁴⁸ =

= 2x10⁽⁴⁹⁻⁴⁸⁾ =

= 2x10¹=

= 20

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c)  21²⁸ : ( 3²⁸ x 7²⁷) =

= (3x7)²⁸ : (3²⁸ x 7²⁷) =

= 3²⁸ x 7²⁸ x 1/(3²⁸x7²⁷) =

= 3⁽²⁸⁻²⁸⁾ x 7⁽²⁸⁻²⁷⁾ =

= 3⁰ x 7¹ =

= 1 x 7 =

= 7

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d) (3¹⁴ x 5¹²) : 15¹² =

= (3¹⁴x5¹²) x 1/(3x5)¹² =

= 3⁽¹⁴⁻¹²⁾x5⁽¹²⁻¹²⁾ =

= 3² x 5⁰ =

= 9 x 1 =

= 9

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e)  12⁹⁰ : ( 2¹⁷⁸ x 3⁹⁰) =

= (4x3)⁹⁰ : (2¹⁷⁸ x 3⁹⁰) =

= (2⁽²ˣ⁹⁰⁾ x3⁹⁰) x 1/(2¹⁷⁸x3⁹⁰) =

= 2⁽¹⁸⁰⁻¹⁷⁸⁾ x 3⁽⁹⁰⁻⁹⁰⁾  =

= 2² x 3⁰ =

= 4 x 1 =

= 4

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f)  ( 2⁷¹ x 3¹⁴²) : 18⁷⁰ =

= (2⁷¹ x 3¹⁴²) : (2x9)⁷⁰ =

= (2⁷¹ x 3¹⁴²) : (2⁷⁰x3⁽²ˣ⁷⁰⁾) =

= 2⁽⁷¹⁻⁷⁰⁾ x 3⁽¹⁴²⁻¹⁴⁰⁾ =

= 2¹ x 3² =

= 2 x 9 =

= 18