Discussion :: Sets, Relations and Functions
- If A = {1, 2, 5} and B = {3, 4, 5, 9}, then A ? B is equal to If A = {x: x = 3n, n ? 6, n ? N} and B = {x: x = 9n, n ? 4, n ? N}, then which of the following is false?
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A.
A ? B = {9, 81, 729, 6561} |
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B.
A U B = {3, 9, 27, 81,243, 729, 6561} |
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C.
A-B = {3, 27,243} (d) A ? D = {3, 27, 243, 6561} |
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D.
none of these |
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Answer : Option A
Explanation :
A ? B = {9, 81, 729, 6561}
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