Question

if a={1234}; b={12345678} then find A union b ,A intersection b what do you notice about the result​

Answer 1

Answer:

A = {1,2,3,4} , B = {1,2,3,4,5,6,7,8}

a union b = {1,2,3,4,5,6,7,8} => single apperance of any element of both sets, only singke apperance

a intersection b = {1,2,3,4} => common in both sets

Step-by-step explanation:

notice about result is

if the small set is subset of big set, then union of both set is big set and intersection of both set is small set

i hope you understand

Answer 2

Answer:

A U B={1,2,3,4} U{1,2,3,4,5,6,7,8}

≈{1,2,3,4,5,6,7,8}

A intersection B = {1,2,3,4} intersection {1,2,3,4,5,6,7,8}

= {1,2,3}

From the above results we notice that A intersection B is a subset A U B,but A UB is not the subset of A intersection B,and AU B ≠A intersection B.

hope it's helpful

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