NDA/NA SOLVED PAPER 2015-II (MATHEMATICS)

Total Questions: 120

61. Solve the following equation

Correct Answer: (b)
Solution:

62. ABCD is a parallelogram and P is the point of intersection of the diagonals. If O is the origin, then

Correct Answer: (a)
Solution:

63. Solve the following equation

Correct Answer: (c)
Solution:

64. Solve the following equation

Correct Answer: (b)
Solution:

65. Solve the following equation

Correct Answer: (d) 36
Solution:

66. Consider the following inequalities in respect of vectors

Correct Answer: (c) Both 1 and 2
Solution:

67. If the magnitude of difference of two unit vectors is sqrt(3) , then the magnitude of sum of the two vectors is

Correct Answer: (b) 1 unit
Solution:


68. Solve the following equation

Correct Answer: (b) Geometric mean of α and β
Solution:

69. Solve the following equation

Correct Answer: (c) Both 1 and 2
Solution:

70. The value of

Correct Answer: (d) 0
Solution: