Question

Q.5*
2 points
For two sets A and B if A is a null set, then Cartesian
product Ax B will be
(a) set B
(b) A
(c)
(d) AUB
O O O O
nul set or o
)
A union B​

Answer 1

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TO DETERMINE

For two sets A and B if A is a null set, then Cartesian

product A x B

CALCULATION

For any two sets A and B the Cartesian product of A and B is denoted by A × B and defined as

$\sf{A \times B \: = \{ \: (x ,y): \: x \in A\: \: and \: \: y \: \in B \: \} }$

Here it is given that A is a null set

So A contains no element

Hence the Cartesian product A x B will be a NULL SET

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LEARN MORE FROM BRAINLY

Th e set P = {x | x ∈Z , –1< x < 1} is a

(a) Singleton set

(b) Power set

(c) Null set

(d) Subset

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