Question

Determine whether the given statements are true or false:

If A={3,6,7} and B={2,3,7,8,10}, then A⊂B

If A={x:x2+4x-21=0,x∈N} and B={-7,3},then A⊆B

If A={1,7,9}, B={2,4,6} and C={0,2,4} then U={0,1,2,3,4,5,6,7,8,9} is the universal set for all three sets.

{6}∈{4,5,{6},7}

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Answer 1

Step-by-step explanation:

1. False
2. False ,in this both sets have same elements
3. False , beacause there U ={0,1,2,3,4,5,6,7,8,9} But 3,5,8 are not there in sets A,B,C
4. True

Answer 2

Answer:

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