Question

va rog ajutați-mă aici??? ​

Answer 1

Răspuns:

a) (5/21×22/10)^12=(5/10×22/21)^12=(1/2×22/21)^12=(22/42)^12=(11/21)^12

5/10 se simplifică cu 5=1/2

22/42 se simplifică cu 2=11/21

b) 5 2/5=25+2/5=27/5

(27/5×5/9)^8=(27/9×5/5)^8=(3×1)^8=3^8

27/9 se simplifică cu 9=3

5/5=1

c) (39/54 ×27/26)^16=(39/26×27/54)^16=(39/26×1/2)^16=

(39/52)^16

27/54 se simplifică cu 27=1/2

d) (55/38×95/22)^6=(55/22×95/38)^6=(5/2×95/38)^6=

(475/76)^6

55/22 se simplifică cu 11=5/2

e) (12/100×8 1/3)^18=(12/100×25/3)^18=(12/3×25/100)^18=

(4×1/4^18=(4/4)^16=1^16=1

8 1/3=24+1/3=25/2

12/3 se simplifică cu 3=4

25/100 se simplifică cu 25=1/4

f) (9/37×37/27)^12=(9/27×37/37)^12=(1/3×1)^12=(1/3)^12

9/27 se simplifică cu 9=1/3

37/37=1