Question

Am nevoie de ajutor la ce vedeti incercuit​

Answer 1

Răspuns:

Explicație pas cu pas:

Mg = √a*b

_________

14/15*12/35 = 14*12/15*35 = 2*7*2^2*3/3*5*7*5 = 2^3*3*7/3*5^2*7 = 2^3/5^2

Mg = 2√2/5

_________

28/15*27/20 = 2^2*7*3^3/3*5*2^2*5 = 7*3^2/5^2

Mg = 3√7/5

_________

3,(3) = (33 - 3)/9 = 30/9 = 10/3

1,2 = 12/10

10/3*12/10 = 4

Mg = √4 = 2

_______________

2,(3) = (23 - 3)/9 = 20/9

1,75 = 175/100 = 7/4

20/9*7/4 = 20*7/9*4 = 35/9

Mg = √(35/9) = √35/3

____________

1,25 = 125/100 = 5/4

1,(6) = (16 - 1)/9 = 15/9 = 5/3

5/4*5/3 = 25/12

Mg = √(25/12) = 5/2√3 = 5√3/6

___________

5,5 = 55/10 = 11/2

1,8(3) = (183 - 18)/90 = 165/90 = 11/6

11/2*11/6 = 121/12

Mg = √(121/12) = 11/2√3 = 11√3/6

____________

3,75 = 375/100 = 15/4

0,2(7) = (27 - 2)/90 = 25/90 = 5/18

15/4*5/18 = 75/72

Mg = √(75/72) = 5√3/6√2 = 5√6/12