Question

AFLATI MULTIMEA A, URGENT VA ROG ​

Answer 1

Salut!

Aflati multimea A.

e) A∈{X∈|N\4x+11>67}

4x+11>67

4x+11>67-11

4x>56

x>56:4

x>14=>A∈{15,16,17,.......}

Succes!

Answer 2

Salut!

Aflați mulțimea A:

A∈{x ∈ ℕ| 4x+11>67}

Răspuns:

A∈ {15, 16, 17, 18.......}

Explicație pas cu pas:

$4x + 11 > 67$

$4x > 67 - 11$

$4x > 56$

$x > \frac{56}{4}$

$x > 14.$

x ∈ {15, 16, 17....}⇒A ∈ {15, 16, 17....}