Question

va rog dau coroana !! ajutatima

Answer 1

Răspuns:

Explicație pas cu pas:

1)

=2²/5²=4/25

2)

12⁽²/16⁽²=6⁽²/8⁽²=3/4

3)

=(7*4+5)/4=33/4

4)

= (3+4+5)/11

= 12/11

5)

=⁴⁾ 4/3-7/12

=(16-7)/12=9⁽³/12⁽³=3/4

6)

=20⁽¹⁰/10⁽¹⁰=2

7)

=7⁽⁷/6⁽²*22⁽²/21⁽⁷=11/9

8)

4⁽⁴/7⁽⁷*21⁽⁷/36⁽⁴=3⁽³/9⁽³= 1/3

9)

=24/100⁽¹⁰⁰*1500⁽¹⁰⁰

=24*15

=260

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10)

=75:4=3³/₄

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ll

1)

=3/4 : (3/4-²⁾1/2)-4/9

=3/4: (3/4-2/4)-4/9

= 3/4:1/4-4/9

= 3/4⁽⁴*4⁽⁴/1-4/9

= ⁹⁾3-4/9

=27/9-4/9

= 23/9

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2)

a)

= (7/3)⁵⁺⁴ :(7/3)⁶

= (7/3)⁹:(7/3)⁶

= (7/3)⁹⁻⁶

= (7/3)³

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b)

=(5⁽⁵/13⁽¹³)²*(26⁽³/15⁽⁵)² :( 2/5)²

=( 2/3)²:(2/5 )²

= 4/9:4/25

=4⁽⁴/9* 25/4⁽⁴

= 9/25

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c)

=11⁽¹/25 *24/7⁽⁷*21⁽⁷/22⁽¹¹+( 16/7+8/7)*7/6

= 3+24/7⁽⁷*7⁽⁷/6

=3+24/6

=3+4

=7

3)

40/100*300=120 (în prima zi )

300-120= 180 (restul)

4/5*180=4*36=144 (a doua zi )

300- (120+144)=36 ( a treia zi )