The sets C and D are defined as follows. C= {yIy3} D={yIyâ¥ 9} Write Câ©D and CâªD using interval notation. If the set is empty, write â . =Dâ¥yy9 Write â©CD and âªCD using interval notation. If the set is empty, write â .

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The sets C and D are defined as follows. C= {yIy>3} D={yIyâ¥ 9} Write Câ©D and CâªD using interval notation. If the set is empty, write â . =Dâ¥yy9 Write â©CD and âªCD using interval notation. If the set is empty, write â .

The sets C and D are defined as follows. C= {yIy>3} D={yIyâ¥ 9} Write Câ©D and CâªD using interval notation. If the set is empty, write â . =Dâ¥yy9 Write â©CD and âªCD using interval notation. If the set is empty, write â .

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The sets C and D are defined as follows. C= {yIy>3} D={yIyâ¥ 9} Write Câ©D and CâªD using interval notation. If the set is empty, write â . =Dâ¥yy9 Write â©CD and âªCD using interval notation. If the set is empty, write â .

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The sets C and D are defined as follows. C= {yIy>3} D={yIyâ¥ 9} Write Câ©D and CâªD using interval notation. If the set is empty, write â . =Dâ¥yy9 Write â©CD and âªCD using interval notation. If the set is empty, write â .