Question

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Answer 1

a) A= (-2,7]

AUB= {-1,-2,1,2,3,4,5,6,7,8,9,10}

A intersectat cu B= {7,8,9,10}

A/B= {-1,-2)

b) A=(-√3,2]

AUB= {-√2-√3,√2,√3,√5,1,2,}

A intersectat cu B= {2}

A/B={-√2,-√3,1,2}

c) A= (-10,7)

AUB={-2,-4,-6,-8,10,1,2,3,4,5,6,7,8,9,10}

A intersectat cu B={3,4,5,6,7}

A/B={-2,-4,-6,-8,-10}