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If A={2,3},B={4,5}andC={5,6}, then n{(Ax...

If `A={2,3},B={4,5}andC={5,6}`, then `n{(AxxB)uu(BxxC)}` is

Text Solution

Verified by Experts

The correct Answer is:
8
`becauseAxxB={2,3}xx{4,5}`
`={(2,4),(2,5),(3,4),(3,5)}`
and `BxxC={4,5}xx{5,6}`
`={(4,5),(4,6),(5,5),(5,6)}`
`therefore (AxxB)uu(BxxC)={(2,4),(2,5),(3,4),(3,5),(4,5),(4,6),(5,5),(5,6)}`
Now, `n{(AxxB)uu(BxxC)}=8`
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