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Ex 1: e,f,b
Ex 2: e,f,b
Urgent!!


Ex 1 Efb Ex 2 Efb Urgent class=

Răspuns :

1 b) x^2 = 9

x = V9

x= 3 sau -3

e) 16x^2 = 9

x^2 = 9/16

x = V(9/16)

x = 3/4 sau -3/4

f) x^2 = 0

x= 0

2b) x^2 = 3/4

x= V(3/4)

x= V3/2 sau -V3/2

e) x^2= 0

x= 0

f) 2x^2 = 1

x^2 =1/2

x= V(1/2)

x= 1/V2 rationalizam cu V2 = V2/2 sau

x=  -1/V2 = -V2/2