Question

A={x:x is a natural number, x^2=16}
B={x:x is an integer;|x|=4}
Write A and B in roster form.
Find A U B and A intersection B

Plz anyone give me the answer... its very urgent

Answer 1

Answer:

AUB = {-4,4}

AnB={4}

Step-by-step explanation:

i)A={x:x is a natural number, x^2=16}

A = {4}

ii)B={x:x is an integer;|x|=4}

B = {-4,4}

iii)AUB = {4}U{-4,4}

= {-4,4}

iv) AnB= {4}n{-4,4}

= {4}

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