Answered

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A={2,4,6,…,18,20} then n(A)=

Sagot :

sqdancefan

Answer:

  n(A) = 10

Step-by-step explanation:

The number of elements in the set of even numbers from 2 to 20 is 10.

  n(A) = 10

_____

Additional comment

Dividing the set elements by 2 maps them to the Natural numbers 1 .. 10. This makes them easy to count.

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