Question

\(u:{\mathbb{N}^*} \to \mathbb{R}\)

       \(n \mapsto {u(n)} = {n^2}\)

Tính \(u\left( 1 \right);u\left( 2 \right);u\left( {50} \right);u\left( {100} \right)\).

Answer 1

\(u\left(1\right)=1^2=1\\ u\left(2\right)=2^2=4\\ u\left(50\right)=50^2=2500\\ u\left(100\right)=100^2=10000.\)

Answer 2

u(1)=1^2=1

u(2)=2^2=4

u(50)=50^2=2500

u(100)=100^2=10000