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CBSE Class 12 Exam 2021 : Mathematics : Pre board vkv jaipur

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DOE PRACTICE PAPER 1 (TERM 1) (SESSION 2021 22) CLASS XII MATHEMATICS (CODE: 041) Time Allowed: 90 Minutes Maximum Marks: 40 General Instructions: 1. This question paper contains three sections A, B and C. Each part is compulsory. 2. Section - A has 20 MCQs, attempt any 16 out of 20. 3. Section - B has 20 MCQs, attempt any 16 out of 20. 4. Section - C has 10 MCQs, attempt any 8 out of 10. 5. There is no negative marking. 6. All questions carry equal marks. SECTION A In this section, attempt any 16 questions out of Questions 1 20. Each question is of 1 mark weightage. Each MCQ has four options with only one correct option, choose the correct option. 1 1 1. The range of the function f(x) = tan x cot x is 1 (a) [ - , ] (b) [ 0, ] (c) [0, ] (d) { } 2 2. 4. 5. 2 2 1 2 1 1 1 The value of the expression sec (2) + sin ( ) + tan ( 3) is (a) 3. 2 5 6 (b) 3 (c) 3 (d) 1 6 The relation R in the set {a, b, c} given by R = {(a, a), (b, b), (a, b), (b, a)} is (a) symmetric and transitive, but not reflexive (b) reflexive and symmetric, but not transitive (c) symmetric, but neither reflexive nor transitive (d) an equivalence relation A = {1, 2, 3, 4}, A relation R in the set A is given by R = { (1, 1), (2, 3), (3, 2), (4, 3), (3, 4) }, then relation R is (a) Reflexive (b) symmetric (c) Transitive (d) Equivalence If A is any square matrix of order 3 3 such that |adj A| = 256, then the sum of all possible values of |A| is (a) 256 (b) 16 (c) 16 (d) 0 1 1 1

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