Question

3 și 4 E PE MÂINE!!!!! DAU COROANA ȘI 100 DE PCTE

Answer 1

3.

a) (5² - 2⁵ : 2) : 3 -1²⁰¹⁹ =

( 25 - 2⁴):3-1

=(25-16):3-1

=9:3-1

=3-1=2

b) (3²•2⁶-2⁵•6):12-2⁵

=(9•64-32•6):12-32

= (576-32•6):12-32

=(576-192):12-32

= 384:12-32

= 32-32=0

c) (7⁴-7³):(7²-7)-2³•5

= (2.401-343):(49-7)-8•5

= 2.058:42-8•5

=49 -40

=9

4. a)9=..........(2)

9:2=4(rest 1)

4:2=2(rest 0)

2:2=1(rest 0)

9= 1001 (2)

b) 43 = .........(2)

43:2=21(rest 1)

21:2=10(rest 1)

10:2=5 (rest 0)

5:2=2(rest 1)

2:2=1(rest 0)

43= 101011 (2)

c) 137

137:2=68(rest 1)

68:2=34(rest 0)

34:2=17(rest 0)

17:2=8(rest 1)

8:2=4(rest 0)

4:2=2(rest 0)

2:2=1(rest 0)

137= 10001001 (2)

Sper ca te-am ajutat! :)