Question

Varianta d,va rog mult

Answer 1

Răspuns:

Explicație pas cu pas:

$\frac{5*4x^{n} *3^{n+1}+4^{n+1}*3^{n+2} }{12^{n+1}+5*12^{n} } =\frac{15*12^{n}+36*12^{n} }{12*12^{n}+5*12^{n}} =\frac{12^{n}*51}{12^{n}*17} =3$