MCQ
If ${N_a} = [an:n \in N\} ,$ then ${N_5} \cap {N_7} = $
  • A
    ${N_7}$
  • B
    $N$
  • ${N_{35}}$
  • D
    ${N_5}$

Answer

Correct option: C.
${N_{35}}$
c
(c) ${N_5} \cap {N_7} = {N_{35}}$,

[$\because 5$ and $7$ are relatively prime numbers].

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