tolong jawab dengan caranya

2.)
a.S={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
A={2,4,6,8,10}
B={1,3,5,7}
C={5,6}
b.(BuC)={1,3,5,7}u{5,6}
={1,3,5,6,7}
(AuB)={2,4,6,8,10}u{1,3,5,7}
={1,2,3,4,5,6,7,8,10}
(AuC)={2,4,6,8,10}u{5,6}
={2,4,5,6,8,10}
(AuBuC)={2,4,6,8,10}u{1,3,5,7}u{5,6}
={1,2,3,4,5,6,7,8,10}

3.)
a.S={-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5, 6,7,8,9,10}
P={-5,-4,-3,-2,-1,0,1,2,3,4,5}
Q={-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,}
R={-2,-1,0,1,2,3,4,5,6,7,8}
b.(PuQ)
={-5,-4,-3,-2,-1,0,1,2,3,4,5}. u{-8,-7,-6,-5,-4,-3,-2,-1,0,1,2}
={-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5}
(PuR)
={-5,-4,-3,-2,-1,0,1,2,3,4,5}u{-2,-1,0,1,2,3,4,5,6,7,8}
={-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8}
(QuR)
={-8,-7,-6-5,-4,-3,-2,-1,0,1,2}u{-2,-1,0,1,2,3,4,5,6,7,8}
={-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8}
(PuQuR)
={-5,-4,-3,-2,-1,0,1,2,3,4,5}u{-8,-7,-6,-5,-4,-3,-2,-1,0,1,2}u{-2,-1,0,1,2,3,4,5,6,7,8}
={-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8}

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