Question

40 va rog frumosss.Dau coroana

Answer 1

Răspuns:

Explicație pas cu pas:

Partea stangda a ecuatiei:

3^2011×(3+1)/3^2010×(3+1)=3

Partea dreapta:

(16/3×13/4-1)/4x=(4×13/3-1)/4x=(52-1)/12x=51/12x

Egalam cele doua parti:

3=51/12x        36x=51       x=51/36

Answer 2

Răspuns:

Explicație pas cu pas:

$\frac{3^{2011}*3+3^{2011} }{3^{2010}*3+3^{2010} } =\frac{\frac{16}{3}*\frac{13}{4}-1 }{4x}$

$\frac{3^{2011}(3+1) }{3^{2010}(3+1) }=\frac{\frac{53}{3}-1 }{4x}$

$3=\frac{\frac{49}{3} }{4x}$

$12x=\frac{49}{3} , 36x=49, x=\frac{49}{36}=1\frac{13}{36}$