Class 12 Relations And Functions · Short Answer2 Markstypes_of_functions
Class 12 Maths · Relations And Functions · Short Answer #213
Find the domain and range of R={(a,a³):a is a prime less than 5}.
✅ Step-by-Step Solution
Final Answer: Domain {2,3}; range {8,27}.
- The prime numbers less than 5 are 2 and 3.
- Cubing them gives R={(2,8),(3,27)}.
- The first coordinates give domain {2,3}, and the second coordinates give range {8,27}.
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] The prime numbers less than 5 are 2 and 3.
- [1 mark] Cubing them gives R={(2,8),(3,27)}.
- [0.5 marks] The first coordinates give domain {2,3}, and the second coordinates give range {8,27}.
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