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CBSE Class 12 Pre Board 2021 : Mathematics - Set 2 (CBSE Gulf Sahodaya Qatar Chapter, Doha)

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PRE-BOARD EXAMINATION-2020-21 SUBJECT - MATHEMATICS Class: XII (CBSE) Total Marks: 80 Date . Time: 3 hrs. General Instructions: 1. This question paper contains two parts A and B. Each part is compulsory. Part A carries 24 marks and Part B carries 56 marks 2. Part-A has Objective Type Questions and Part -B has Descriptive Type Questions 3. Both Part A and Part B have choices. Part A: 1. It consists of two sections- I and II. 2. Section I comprises of 16 very short answer type questions. 3. Section II contains 2 case studies. Each case study comprises of 5 case-based MCQs. An examinee is to attempt any 4 out of 5 MCQs. Part B: 1. It consists of three sections- III, IV and V. 2. Section III comprises of 10 questions of 2 marks each. 3. Section IV comprises of 7 questions of 3 marks each. 4. Section V comprises of 3 questions of 5 marks each. 5. Internal choice is provided in 3 questions of Section III, 2 questions of Section-IV and 3 questions of Section-V. You have to attempt only one of the alternatives in all such questions. PART A Section I All questions are compulsory. In case of internal choices attempt any one. 1. Check whether the function : N N, given by ( ) =2 is one one or onto? (1) OR Set A has 3 elements and the set B has 4 elements. Find the number of injective mapping that can be defined from A to B? 2. Show that the relation S in the set = { : 0 12} given by (1) = {( , ): , , | | 3} is a transitive relation? Page 1 of 8

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