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CBSE Class 12 Pre Board 2020 : Mathematics (Kendriya Vidyalaya (KV) Agra)

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KENDRIYA VIDYALAYA SANGATHAN, AGRA REGION PRE BOARD QUESTION PAPER 2019-20 Class XII SET : H MATHEMATICS-040 Time: 3 Hrs. Maximum Marks: 80 General Instructions: (i) All the questions are compulsory. (ii) The question paper consists of 36 questions divided into 4 Sections A, B, C and D. (iii) 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. (iv) There is no overall choice. However ,an internal choice has been provided In 3 questions of 1 marks each, two questions of 2 marks each , two questions of 4 marks each, two questions of 6 marks each. You have to attempt only one of the alternatives in all such questions. (v) Use of calculator is not permitted. SECTION A 1 If f(x)=( ) The value of cot ( (a) 3 5 6 ) ( )( ) ( ) 1 ( ) 1 ) is (b) (b) If A is a 3-rowed square matrix and | | (d) 1 If A , B are symmetric matrices of same order, AB -BA is a 1 ( ) | |=? (a) 4 ( ( ) (a) 2 ( ) ( ) ( ) ( ) ( ) Symmetric matrix ( ) ( ) If A= * + and B=[ 1 ], then ( ) (b) ( ) ( ) The approximate change in the volume of a cube of side x meters caused by increasing the side by 3% is ( ) ( ) ( ) Page 1 of 4 ( ) 1

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