English SECTION B PGT TIER-I 31.11.2014
Q201. The domain of the function f: R→ → →R defined by 2 f(x) x 3x 2 is–
A (,)
B (1,2)
C (,1] [2,)
D None of these
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Correct answer: (,1] [2,)
English SECTION B PGT TIER-I 31.11.2014 TGT KVS 2017
Q202. Let f: R → → → R be the function defined by 1 f(x) 2 cos x for all x R, Then the range of f is–
A [ 1,1]
B 1,1 3
C (,)
D R/{0}
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Correct answer: 1,1 3
English SECTION B PGT TIER-I 31.11.2014
Q203. Two finite sets have m and n elements respectively. The total number of subsets of first set is 56 more than the total number of the second set. The values of m and n respectively are–
A 7,6
B 5,1
C 6,3
D 8,7
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Correct answer: 6,3
English SECTION B PGT TIER-I 31.11.2014
Q204. Let F1 be the set of parallelograms, F2 the set of rectangles, F3 the set of rhombuses, F4 the set of squares and F5 the set of trapeziums in a plane. Then F1 may be equal to–
A 2 3/F F
B 3 4/F F
C 2 5/F F
D 2 3 4 1/F F F F
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Correct answer: 2 3 4 1/F F F F
English SECTION B PGT TIER-I 31.11.2014
Q205. Let n(A) = m and n(B) = n. Then the total number of non-empty relations that can be defined from A to B is–
A mn
B nm/–1
C mn – 1
D 2mn/– 1
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Correct answer: 2mn/– 1
English SECTION B PGT TIER-I 31.11.2014
Q206. If n x 1 is divisible by x k, − − then the least positive integral value of k is–
A 1
B 2
C 3
D 4
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Correct answer: 1
English SECTION B PGT TIER-I 31.11.2014
Q207. If f = {(–1, –5), (1, –1), (3, 3)} is a function described by f(x) = ax + b, then the values of a and b are–
A –3, –1
B 2, –3
C 0, 2
D 2, 3
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Correct answer: 2, –3
English SECTION B PGT TIER-I 31.11.2014
Q208. Let 2 A {x R x x 6} and B {x R x 3} Which of the following is true?
A A B
B B A
C A B
D A B
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Correct answer: B A
English SECTION B PGT TIER-I 31.11.2014
Q209. The function f(x) = [x], where [.] denotes the greatest integer function, is continuous at–
A 4
B –2
C 1
D 1.5
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Correct answer: 1.5
English SECTION B TGT TIER-I 31.11.2014
Q210. Number of subsets of a finite set with n elements are–
A 2n
B n!
C n2
D nn
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Correct answer: 2n
English JDD-75-PGT TIER II-X-15 28.06.2015
Q211. Choose the correct set of function which are linearly dependent.
A 2 2 {sin x,sin x,cos x}
B {cos x,sin x,tan x}
C 2 2 {cos2x,sin x,cos x}
D {cos2x,sin x,cosx}
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Correct answer: 2 2 {cos2x,sin x,cos x}
English JDD-75-PGT TIER II-X-15 28.06.2015
Q212. Which of the following is a subspace of the vector space 3 IR?
A 3 {(x,y,z) IR: x 1 0, y 0}
B 3 {(x, y,z) IR: x 0, y 0}
C 3 {(x, y,z) IR: 2x 3y 4z 3 0,z 0}
D 3 {(x, y,z) IR: x 2y 0,2x 3z 0}
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Correct answer: 3 {(x, y,z) IR: x 2y 0,2x 3z 0}
English JDD-75-PGT TIER II-X-15 28.06.2015
Q213. If 14 = 172 (modx), then x can take the value–
A 38
B 54
C 66
D 79
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Correct answer: 79
English JDD-75-PGT TIER II-X-15 28.06.2015
Q214. The least positive integer to which 79×101×125 is congruent mod 11 is–
A 5
B 6
C 4
D 8
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Correct answer: 5
English JDD-75-PGT TIER II-X-15 28.06.2015
Q215. If 7x = 13(mod 11) then the value of x is–
A 3
B –2
C 5
D None of these
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Correct answer: 5
English JDD-75-PGT TIER II-X-15 28.06.2015
Q216. The supremum of the set { { { } } 2 A P Q:P 2 = ∈ < = ∈ < = ∈ < = ∈ < in Q is
A 2
B 2
C exists, but not 2
D does not exist
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Correct answer: does not exist
English JDD-75-PGT TIER II-X-15 28.06.2015
Q217. lf x 3 10,then + ≥ + ≥ –
A () x 13,7 ∈ −
B [ ] x 13,7 ∈ −
C (][) x, 13 7, ∈ −∞ − ∞
D None of these
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Correct answer: (][) x, 13 7, ∈ −∞ − ∞
English JDD-75-PGT TIER II-X-15 28.06.2015
Q218. Let 2 A X: X 5X 6 0 ℝ ℝ The infimum and supremum of A are–
A 1 and 2
B 2 and 3
C 2 and 5
D none of these
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Correct answer: 2 and 3
English JDD-75-PGT TIER II-X-15 28.06.2015
Q219. lf x 2 A x R: 4, x 1 + = ∈ < = ∈ < = ∈ < = ∈ < − then–
A () () x,1 2, ∈ −∞ ∪ ∞
B () x, ∈ −∞ ∞
C () () x,2 2, ∈ −∞ ∪ ∞
D none of these
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Correct answer: () () x,1 2, ∈ −∞ ∪ ∞
English JDD-75-PGT TIER II-X-15 28.06.2015
Q220. The limit points of the following subset of (()) n 1 R 1 1: n N is n + − ∈ + − ∈ + − ∈ + − ∈ –
A 0
B 1
C infinitely many points
D none of these
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Correct answer: 1