Question

Ajutati-ma va rog la exercitiul 15!!

Answer 1

a) a=4/3

b=6/9=2/3

c=2

m=(4/3+2/3-2)/(4/3-2/3+2)

m=(2-2)/(2/3+2)

m=0

b) a=4/3+7/3+10/3=21/3=7

b=5/3+8/3-13=12/3-13=4-13= -9

c=21/9-12/9+30/9=39/9=13/3

m=(7+(-9)-13/3)/(7+9-13/3)

m=(-2-13/3)/(16-13/3) amplificam pe -2 si pe 16 cu 3

m=(-6/3-13/3)(48/3-13/3)

m= -19/3/35/3

m= -19/3*5/35

m= -95/105= -19/21