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CBSE 12th Board Class 12 2020 : Mathematics

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Sifan Ali
Shri Ram Centennial School (SRCS), Dehradun

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Class XII MATHEMATICS- 041 SAMPLE QUESTION PAPER 2019-20 Time: 3 Hrs. Maximum Marks: 80 General Instructions: (i) (ii) (iii) (iv) (v) All the questions are compulsory. The question paper consists of 36 questions divided into 4 sections A, B, C, and D. Section A comprises of 20 questions of 1 mark each. Section B comprises of 6 questions of 2 marks each. Section C comprises of 6 questions of 4 marks each. Section D comprises of 4 questions of 6 marks each. There is no overall choice. However, an internal choice has been provided in three questions of 1 mark each, two questions of 2 marks each, two questions of 4 marks each, and two questions of 6 marks each. You have to attempt only one of the alternatives in all such questions. Use of calculators is not permitted. SECTION A Q1 - Q10 are multiple choice type questions. Select the correct option 1 If A is any square matrix of order 3 3 such that |A| = 3, then the value of |adjA| is ? (a) 3 (b) (c) 9 (d) 27 1 2 Suppose P and Q are two different matrices of order 3 n and n p , then the order of the matrix P Q is? (a) 3 p (b) p 3 (c) n n (d) 3 3 1 3 If 2 + 6 + 27k + p + qk = 0 ,then the values of p and q are ? (a) p= 6 ,q=27(b)p=3,q= (c) p=6,q= (d) p=3 ,q=27 1 4 If A and B are two events such that P(A)=0.2 , P(B)=0.4 and P(A B)=0.5 , then value of P(A/B) is ? (a)0.1 (b)0.25 (c)0.5 (d) 0.08 1 5 The point which does not lie in the half plane 2 + 3 12 0 is (a) (1,2) (b) (2,1) (c) (2,3) (d)( 3, 2) If sin x + sin y = , then the value of cos x + cos 1 6 y is ________ 1 (a) (b) (c) (d) 1

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