CBSE Class 12 Sample Paper for 2024 Boards
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CBSE Class 12 Sample Paper for 2024 Boards
Last updated at April 16, 2024 by Teachoo
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Checking Assertion ASSERTION (A): The relation 𝑓:{1,2,3,4}→{𝑥,𝑦,𝑧,𝑝} defined by 𝑓={(1,𝑥),(2,𝑦),(3,𝑧)} is a bijective function. Making the diagram for the relation We know that, A relation is a function if every element of first set has an image. In this case element 4 has no image Hence, the given relation is not a function Thus, given relation is not a bijective function So, Assertion is false. Checking Reason REASON (R): The function 𝑓:{1,2,3}→{𝑥,𝑦,𝑧,𝑝} such that 𝑓={(1,𝑥),(2,𝑦),(3,𝑧)} is one-one. Checking one – one 𝑓={(1,𝑥),(2,𝑦),(3,𝑧)} Since each element has a unique image ∴ f is one-one So, reason is true So, Assertion is false Reasoning is true So, the correct answer is (d)
