Question

1) M={x+3/x ∈ N, 4≤x≤7}

N={2x -1/x ∈ N,2∠ x ∠6}

Determina n(M) + n(N) - n(M - N)


2) C={2x-3/x ∈ N,3 ≤ x ≤7}
D={x sobre 2 / x ∈ N, 2 ≤ X ≤ 9}
Hallar n(C U D) + n(C ∩ D)

Answer 1

Explicación paso a paso:

M={4,5,6,7} + 3   M={7,8,9,10}

N= {3,4,5} 2x-1    N={5,7,9}

C={3,4,5,6,7}  C={3,5,7,9,11}

D={2,3,4,5,6,7,8,9} D= {4,9,16,25,36,49,64,81}

Espero que te ayude