Page 1 : Subject Code - 041, , , , Sample Question Paper, CLASS: XII, Session: 2021-22, Mathematics (Code-041), Term -1, Time Allowed: 90 minutes Maximum Marks: 40, , General Instructions:, , This question paper contains three sections - A, B and C. Each part is compulsory., Section - A has 20 MCQs, attempt any 16 out of 20., , Section - B has 20 MCQs, attempt any 16 out of 20, , Section - C has 10 MCQs, attempt any 8 out of 10., , There is no negative marking., , All questions carry equal marks., , PAPoOn=, , , , SECTION -A, In this section, attempt any 16 questions out of Questions 1 - 20., Each Question is of 1 mark weightage., , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , 1. | sin [= —sin*t (—3)] is equal to: 1, T I, a) 5 b) 5, ©) -1 d) 1, 2. The value of k (k < 0) for which the function f defined as 1, 1-coskx, fx) =) sie x#0, 7 x=0, is continuous at x = 0 is:, a) +1 b) —1, 1 1, o) +3 d) =, 3. If A = [ai] is a square matrix of order 2 such that aj = iF whenl #4) , then 1, 0,wheni =j, A? is:, 1 0 11, at ol » lo ol, 11 1 0, ol ol 4 [0 al, 4. Value of k, for which A = [k £ is a singular matrix is: 1, a) 4 b) -4, c) +4 Cm), 5: Find the intervals in which the function f given by f (x) = x *— 4x + 6 is strictly 1, increasing:, a) (-*,2)U (2, %) b) (2, ), c)_(—=, 2) d) (—*, 2]u (2, »), 6. Given that A is a square matrix of order 3 and | A | = - 4, then | adj A | is 4, equal to:, a) -4 b) 4