Question

Va roggg dau coroana ma jur . Am nevoie de la ex 1 : c,d,e si f iar la ex 2 : prima coloană.
Mulțumesc din inimă. ​

Answer 1

Răspuns:

1)c) 8/13·(-26/11)-(-11/11+6/11)=-16/11-(-5/11)=-16/11+5/11=-11/11=-1

d) (13/10-13/5):(5/2-5/3:10/3+5/4)=(13/10-26/10):(5/2-5/3·3/10+5/4)=

(-13/10):(4/2+5/4)=(-13/10):(8/4+5/4)=(-13/10):13/4=-13/10·4/13=-2/5

e)(-10/24+21/24-1/24)·36/25=10/24·36/25=3/5

2) a) 1·36/25=36/25 ( toată paranteza la puterea zero este egală cu 1)

c) 1/4:[5/4-2/3·(2,25-1,5)]=1/4:(5/4-2/3·0,75)=1/4:(5/4-2/3·75/100)=1/4:(5/4-2/3·3/4)=1/4:(5/4-2/4)=1/4:3/4=1/4·4/3=1/3

e) 14-5·(1/2·5-3/2)=14-5·(5/2-3/2)=14-5·2/2=14-5=9

g) (3/5)¹⁰:(3/5)¹¹+4/3=(3/5)¹⁰·(5/3)¹¹+4/3=5/3+4/3=9/3=3

i) 17-4/3+1/3=17-3/3=17-1=16

Explicație pas cu pas: