WBJEE · Maths · Sets and Relations
Let A be the set of even natural numbers that are < 8 &
B be the set of prime integers that are < 7
The number of relations from A to B are
- A \(3^2\)
- B \(2^{9-1}\)
- C \(9^2\)
- D \(2^9\)
Answer & Solution
Correct Answer
(D) \(2^9\)
Step-by-step Solution
Detailed explanation
Hint : \(\begin{aligned} & A=\{2,4,6\} \\ & B=\{2,3,5\} \end{aligned}\) \(\therefore\) Number of relations from \(A\) to \(B\) is \(2^9\)
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