Question

.....................​

Answer 1

Răspuns:

Explicație pas cu pas:

a = (√3+√3²+√3³+.....+√3¹⁰):(33+11√3)

a = (√3+3+3√3+9+9√3+27+27√3+81+81√3+243):(33+11√3)

a = (121√3+363):(33+11√3)

a = 121(√3+3) :[11(√3+3)]

a = 11 ∈ N