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 Multiple Choice QuestionsMultiple Choice Questions

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71.

nn + 12n + 1 : n  Z 

  • 6k : k  Z

  • 12k : k  Z

  • 18k : k  Z

  • 24k : k  Z


72.

If x22x - 1x + 2x - 3 = A + B2x - 1 + Cx + 2 + Dx - 3, then A is equal to

  • 12

  • - 150

  • - 825

  • 2725


73.

If m- 3, 4 + n4 - 3 = 10 - 11, then 3m + 7n is equal to

  • 3

  • 5

  • 10

  • 1


74.

If f : R  R is defined by f(x) = [2x] - 2[x] for x  R, where [x] is the greatest integer not exceeding x, then the range of f is :

  • x  R : 0  x  1

  • {0, 1}

  • x  R : x > 0

  • x  R : x  0


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 Multiple Choice QuestionsMatch The Following

75.

If f : R  R is defined byfx = x + 4    for      x < - 43x + 2  for - 4  x < 4x - 4    for      x  4

then the correct matching of List-I from List-II is :

        List-I                      list-II

(A)  f(- 5) + f(- 4)     (i)    14

(B)  ff- 8           (ii)     4

(C)  ff- 7 + f3    (iii)    - 11

(D)  f(f(f(f(0)))) + 1 (iv)    1

                              (v)     0

A. A B C D (i) (iii) (vi) (ii) (v)
B. A B C D (ii) (iii) (iv) (ii) (v)
C. A B C D (iii) (iv) (iii) (ii) (i)
D. A B C D (iv) (iii) (vi) (v) (ii)

 Multiple Choice QuestionsMultiple Choice Questions

76.

If x = 2 + 32 - 3, then x2(x - 4)2 is equal to :

  • 7

  • 4

  • 2

  • 1


77.

12 - 68 + 482 is equal to

  • 2 - 3

  • 2 + 2

  • 2 - 2

  • 6 - 28


78.

For all integers n > 1, which of the following is divisible by 9 ?

  • 8n + 1

  • 4n - 3n - 1

  • 32n + 3n + 1

  • 10n + 1


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79.

If 3x + 2x + 12x2 + 3 = Ax + 1 + Bx + C2x2 +3, thenA + C - B is equal to :

  • 0

  • 2

  • 3

  • 5


80.

elogcos(h)- 12 is equal to

  • log2 - 3 

  • log3 - 2

  • log2 + 3

  • log2 + 5


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