Math, asked by ishibhila099, 3 months ago

plz send the answer of thes equations

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Answered by suhail2070

1

Answer:

21

Step-by-step explanation:

$n(a \: \: \: \: union \: \: \: \: b) = n(a) + n(b) - n(a \: \: \: intersection \: \: \: \: b) \\ \\ = 8 + 19 - 6 \\ \\ = 19 + 2 \\ \\ = 21$

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