1.

Fill in the blanks -2 by 5 + ( 2 by 7 +(4 by 5) = _ + 3 by 7 + 4 by 5​

Answer»

ong>Answer:

(i) It can be seen that A⊂{0,1,2,3,4,5,6}

B⊂{0,1,2,3,4,5,6}

HOWEVER, C

⊂{0,1,2,3,4,5,6}

Therefore, the set {0,1,2,3,4,5,6} cannot be the universal set for the sets A, B and C.

(II) A

⊂ϕ,B

⊂ϕ,C

⊂ϕ

Therefore, ϕ cannot be the universal set for the sets A, B, and C.

(iii) A⊂{0,1,2,3,4,5,6,7,8,9,10}

B⊂{0,1,2,3,4,5,6,7,8,9,10}

C⊂{0,1,2,3,4,5,6,7,8,9,10}

Therefore, the set {0,1,2,3,4,5,6,7,8,9,10} is the universal set for the sets A, B and C.

(iv) A⊂{1,2,3,4,5,6,7,8}

B⊂{1,2,3,4,5,6,7,8}

However, C

⊂{1,2,3,4,5,6,7,8}

Therefore, the set {1,2,3,4,5,6,7,8} cannot be the universal set for the sets A, B, and C.


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