Question

Calculaţi, folosind regulile studiate:
a) 7⁴⁵•7¹⁰=
b)12¹⁸:12⁹=
c) (9⁷)¹¹=
d)14⁴:7⁴=
e) 2¹¹¹:2⁸⁹:4¹⁰=
f) 7²(³)^:(7²)³:7¹(²⁰¹⁸)^(⁰)^
plzzz dau coroana​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

=7⁴⁵⁺¹⁰

=7⁵⁵

-

b)

=12¹⁸⁻⁹

=12⁹

-

c)

=9⁷ˣ¹¹

=9⁷⁷

-

d)

=(2*7⁴:7⁴

= 2⁴*7⁴:7⁴

= 2⁴*7⁴⁻⁴

= 2⁴*7⁰

=2⁴*1

=2⁴

=16

-

e)

= 2¹¹¹:2⁸⁹: (2²)¹⁰

= 2¹¹¹⁻⁸⁹ : 2²ˣ¹⁰

= 2²²:2²⁰

=2²²⁻²⁰

=2²

=4

-

f)

= 7²ˣ³: 7²ˣ³: (7²⁰¹⁸)⁰

= 7⁶:7⁶:1

= 7⁶⁻⁶ :1

= 7⁰:1

= 1:1

=1