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rezolva in R ecuatia x^2=100/121

Răspuns :

x = [tex] \sqrt{100/121} [/tex]
x = + - 10/11 
x = + - 0,(90)
x²=100/121
x²-100/121=0
x²=10²/11²=0
x²-(10/11)²=0
(x-10/11)(x+10/11)=0
x1=10/11
x2=-10/11
as simple as that!!