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Let A= {x : x is a prime factor of 2016}...

Let `A=` {x : x is a prime factor of 2016} and `B=`{x : x is a prime factor of 2025}.
find : (i) `A uu B` (ii) `A nn B`
(iii) `A -B` (iv) `B-A`

Text Solution

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The correct Answer is:
(i) `{2, 3, 5, 7}`
(ii) `{3}`
(iii) `{2, 7}`
(iv) `{5}`
`A={2, 3, 7}`, since the prime factors of 2016 are 2, 3 and 7.
`B={3, 5}`, since the prime factor of 2025 are 3 and 5.
(i) `A uu B={2, 3, 5, 7}`
(ii) `A nn B={3}`
(iii) `A-B={2, 7}`
(iv) `B-A={5}`
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