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AEEE –Past papers MATHEMATICS - UNSOLVED PAPER - 2011
SECTION – I Straight Objective Type This section contains  multiple choice questions numbered  30 . Each question has 4 choices (A), (B), (C) and (D), out of   which ONLY ONE is correct.
01 Problem The lines L1 : y − x = 0 and L2 : 2x + y = 0 intersect the line L3 : y + 2 = 0 at P and Q respectively. The bisector of the acute angle between L1 and L2 intersect L3 at R . Statement – 1 : The ratio PR :RQ equals 2 2: 5 . Statement – 2 : In any triangle, bisector of an angle divides the triangle into two similar triangles. Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
Problem 02 If A = sin2 x + cos4 x , then for all real Xe a. b. c. d.
Problem 03 The coefficient of xE in the expansion of (1−X− X2 + X3 ) 6 is -132  -144  132  144
Problem 04 equals √2  equals − √2  equals  does not exist
Problem 05 Statement – 1 : The number of ways of distributing 10 identical balls in 4 distinct boxes such that no  box is empty is 9  C3 Statement – 2 : The number of ways of choosing any 3 places from 9 different places is 9 C3 . Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
Problem 06                         equals a. b. c. d.
Problem 07 If         y 3 0 = + > and y (0) = 2 , then y(ln2) is equal to 5  13  -2  7
Problem 08 Let R be the set of real numbers Statement – 1 : A = {(x,y)∈R×R : y − x is an integer} is an equivalence relation on R . Statement – 2 : B = {(x,y)∈R×R : x = αy for some rational number α} is an equivalence relation on   Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
Problem 09 The value of                           IS a. b. c.   Log  2 d.πlog 2
Problem 10 Let α, β be real and z be a complex number. If z2 + αz + β = 0 has two distinct roots on the line Rez = 1, then it is necessary that β∈(−1, 0)  |β| = 1  β∈(1, ∞) β∈(0, 1)
Problem 11 Consider 5 independent Bernoulli’s trials each with probability of success p. If the probability of at least  one failure is greater than or equal to         , then p lies in the interval a. b. c. d.
Problem 12 A man saves Rs. 200 in each of the first three months of his service. In each of the subsequent months  his saving increases by Rs. 40 more than the saving of immediately previous month. His total saving from  the start of service will be Rs. 11040 after 19 months  20 months  21 months  18 months
Problem 13 The domain of the function f (x)                       is (0, ∞)  (−∞, 0)  (−∞, ∞) − {0}  (−∞, ∞)
Problem 14 If the angle between the line                      and the planes                                         cos 1then λ equals a.  b. ⅖ c. d.⅔
Problem 15 If                                          and                                               then the value of a.-3 b.5 c.3 d.-5
Problem 16 Equation of the ellipse whose axes are the axes of coordinates and which passes through the point  (−3, 1) and has eccentricity          is 5x2 + 3y2 − 48 = 0  3x2 + 5y2 −15 = 0   5x2 + 3y2 − 32 = 0 3x2 + 5y2 − 32 = 0
Problem 17 Let I be the purchase value of an equipment and V(t) be the value after it has been used for t years.  The value V(t) depreciates at a rate given by differential equation  ,                k > 0 is a  constant and T is the total life in years of the equipment. Then the scrap value V(T) of the equipment is a. b. c. d.
Problem 18 The vector     and        are not perpendicular and     andare two vectors satisfying:                          and  a.d = 0 . Then the vector d  is equal to a. b. c. d.
Problem 19 The two circles x2 + y2 = ax and x2 + y2 = c2 (c > 0) touch each other if a = c a = 2c  a = 2c  2 a = c
Problem 20 If C and D are two events such that C ⊂ D and P(D) ≠ 0 , then the correct statement among the   following is P(C |D) ≥ P(C)   P(C |D) < P(C)  P(C |D) = P(C |D) = P(C)
Problem 21 The number of values of k for which the linear equations  4x + ky + 2z = 0 ; kx + 4y + z = 0 ; 2x + 2y + z = 0 possess a non-zero solution is 2  1   zero  3
Problem 22 Consider the following statements P : Suman is brilliant Q : Suman is rich R : Suman is honest The negation of the statement “Suman is brilliant and dishonest if and only if Suman is rich” can be  expressed as ~ (Q ↔ (P∧ ~ R))  ~ Q ↔~ P ∧R  ~ (P∧ ~ R) ↔ Q ~ P ∧ (Q ↔~ R)
Problem 23 The shortest distance between line y − x = 1 and curve x = y2 is a. b. c. d.
Problem 24 If the mean deviation about the median of the numbers a, 2a, …, 50a is 50, then a equals 3   4  5  2
Problem 25 Statement – 1 : The point A(1, 0, 7) is the mirror image of the point B(1, 6, 3) in  the line  Statement – 2 : The                       line: x y 1 z 2bisects the line segment joining A(1, 0, 7) and B(1, 6, 3) . Statement – 1 is true, Statement–2 is true; Statement–2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
Problem 26 Let A and B be two symmetric matrices of order 3. Statement – 1 : A(BA) and (AB)A are symmetric matrices. Statement – 2 : AB is symmetric matrix if matrix multiplication of A and B is commutative.  Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
Problem 27 If ω(≠ 1) is a cube root of unity, and (1+ ω )7 = A + Bω . Then (A, B) equals (1, 1)  (1, 0)  (-1, 1)  (4) (0, 1)
Problem 28 The value of p and q for which the function f      is continuous for all x in R, is a. b. c. d.
Problem 29 The area of the region enclosed by the curves                              1and the positive x-axis is 1 square units  square units  square units square units
Problem 30 For 5 x 0,2  define                                           sintdt . Then f has local minimum at π and 2π local minimum at π and local maximum at 2π local maximum at π and local minimum at 2π local maximum at π and 2π
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Aieee mathematics -2011

  • 1. AEEE –Past papers MATHEMATICS - UNSOLVED PAPER - 2011
  • 2. SECTION – I Straight Objective Type This section contains multiple choice questions numbered 30 . Each question has 4 choices (A), (B), (C) and (D), out of which ONLY ONE is correct.
  • 3. 01 Problem The lines L1 : y − x = 0 and L2 : 2x + y = 0 intersect the line L3 : y + 2 = 0 at P and Q respectively. The bisector of the acute angle between L1 and L2 intersect L3 at R . Statement – 1 : The ratio PR :RQ equals 2 2: 5 . Statement – 2 : In any triangle, bisector of an angle divides the triangle into two similar triangles. Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
  • 4. Problem 02 If A = sin2 x + cos4 x , then for all real Xe a. b. c. d.
  • 5. Problem 03 The coefficient of xE in the expansion of (1−X− X2 + X3 ) 6 is -132 -144 132 144
  • 6. Problem 04 equals √2 equals − √2 equals does not exist
  • 7. Problem 05 Statement – 1 : The number of ways of distributing 10 identical balls in 4 distinct boxes such that no box is empty is 9 C3 Statement – 2 : The number of ways of choosing any 3 places from 9 different places is 9 C3 . Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
  • 8. Problem 06 equals a. b. c. d.
  • 9. Problem 07 If y 3 0 = + > and y (0) = 2 , then y(ln2) is equal to 5 13 -2 7
  • 10. Problem 08 Let R be the set of real numbers Statement – 1 : A = {(x,y)∈R×R : y − x is an integer} is an equivalence relation on R . Statement – 2 : B = {(x,y)∈R×R : x = αy for some rational number α} is an equivalence relation on Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
  • 11. Problem 09 The value of IS a. b. c. Log 2 d.πlog 2
  • 12. Problem 10 Let α, β be real and z be a complex number. If z2 + αz + β = 0 has two distinct roots on the line Rez = 1, then it is necessary that β∈(−1, 0) |β| = 1 β∈(1, ∞) β∈(0, 1)
  • 13. Problem 11 Consider 5 independent Bernoulli’s trials each with probability of success p. If the probability of at least one failure is greater than or equal to , then p lies in the interval a. b. c. d.
  • 14. Problem 12 A man saves Rs. 200 in each of the first three months of his service. In each of the subsequent months his saving increases by Rs. 40 more than the saving of immediately previous month. His total saving from the start of service will be Rs. 11040 after 19 months 20 months 21 months 18 months
  • 15. Problem 13 The domain of the function f (x) is (0, ∞) (−∞, 0) (−∞, ∞) − {0} (−∞, ∞)
  • 16. Problem 14 If the angle between the line and the planes cos 1then λ equals a. b. ⅖ c. d.⅔
  • 17. Problem 15 If and then the value of a.-3 b.5 c.3 d.-5
  • 18. Problem 16 Equation of the ellipse whose axes are the axes of coordinates and which passes through the point (−3, 1) and has eccentricity is 5x2 + 3y2 − 48 = 0 3x2 + 5y2 −15 = 0 5x2 + 3y2 − 32 = 0 3x2 + 5y2 − 32 = 0
  • 19. Problem 17 Let I be the purchase value of an equipment and V(t) be the value after it has been used for t years. The value V(t) depreciates at a rate given by differential equation , k > 0 is a constant and T is the total life in years of the equipment. Then the scrap value V(T) of the equipment is a. b. c. d.
  • 20. Problem 18 The vector and are not perpendicular and andare two vectors satisfying: and a.d = 0 . Then the vector d is equal to a. b. c. d.
  • 21. Problem 19 The two circles x2 + y2 = ax and x2 + y2 = c2 (c > 0) touch each other if a = c a = 2c a = 2c 2 a = c
  • 22. Problem 20 If C and D are two events such that C ⊂ D and P(D) ≠ 0 , then the correct statement among the following is P(C |D) ≥ P(C) P(C |D) < P(C) P(C |D) = P(C |D) = P(C)
  • 23. Problem 21 The number of values of k for which the linear equations 4x + ky + 2z = 0 ; kx + 4y + z = 0 ; 2x + 2y + z = 0 possess a non-zero solution is 2 1 zero 3
  • 24. Problem 22 Consider the following statements P : Suman is brilliant Q : Suman is rich R : Suman is honest The negation of the statement “Suman is brilliant and dishonest if and only if Suman is rich” can be expressed as ~ (Q ↔ (P∧ ~ R)) ~ Q ↔~ P ∧R ~ (P∧ ~ R) ↔ Q ~ P ∧ (Q ↔~ R)
  • 25. Problem 23 The shortest distance between line y − x = 1 and curve x = y2 is a. b. c. d.
  • 26. Problem 24 If the mean deviation about the median of the numbers a, 2a, …, 50a is 50, then a equals 3 4 5 2
  • 27. Problem 25 Statement – 1 : The point A(1, 0, 7) is the mirror image of the point B(1, 6, 3) in the line Statement – 2 : The line: x y 1 z 2bisects the line segment joining A(1, 0, 7) and B(1, 6, 3) . Statement – 1 is true, Statement–2 is true; Statement–2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
  • 28. Problem 26 Let A and B be two symmetric matrices of order 3. Statement – 1 : A(BA) and (AB)A are symmetric matrices. Statement – 2 : AB is symmetric matrix if matrix multiplication of A and B is commutative. Statement – 1 is true, Statement – 2 is true; Statement – 2 is not a correct explanation for Statement – 1 Statement – 1 is true, Statement– 2 is false. Statement – 1 is false, Statement– 2 is true. Statement – 1 is true, Statement – 2 is true; Statement – 2 is a correct explanation for Statement – 1
  • 29. Problem 27 If ω(≠ 1) is a cube root of unity, and (1+ ω )7 = A + Bω . Then (A, B) equals (1, 1) (1, 0) (-1, 1) (4) (0, 1)
  • 30. Problem 28 The value of p and q for which the function f is continuous for all x in R, is a. b. c. d.
  • 31. Problem 29 The area of the region enclosed by the curves 1and the positive x-axis is 1 square units square units square units square units
  • 32. Problem 30 For 5 x 0,2 define sintdt . Then f has local minimum at π and 2π local minimum at π and local maximum at 2π local maximum at π and local minimum at 2π local maximum at π and 2π
  • 33. FOR SOLUTION VISIT WWW.VASISTA.NET

Editor's Notes

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