HSSC TGT Maths Date 30/4/2023 Morning Shift

Total Questions: 100

91. If |a| = 10, |b| = 2 and (a.b) = 12, then |axb| =

Correct Answer: (b) 16

92. P (2, 3, -1) lies in :

Correct Answer: (c) V octant

93. If A and B are symmetric matrices of the same order, then AB' - BA' is a :

Correct Answer: (a) Skew-symmetric matrix

94. If A and B are any two events such that P(A) = 1/2, P(B) = 1/3 then P (A∩B) = 1/4, then P (A'/B) =

Correct Answer: (d) 1/4

95. If matrix A = [aij]₄ Where .

Correct Answer: (c) A

96. The magnitude of the vector 6ˆi+2ˆj+3ˆk is :

Correct Answer: (b) 7

97. In a group of 65 people, 40 people like cricket, 10 people like both cricket and tennis. The number of people in the group who like tennis but not cricket is:

Correct Answer: (a) 25

98. ∫eˣ(cosx - sinx) dx =

Correct Answer: (b) eˣ cosx + C

99. Three vertices of a parallelogram ABCD are: A(3, –1, 2), B(1, 2, –4), C(–1, 1, 2) . The coordinates of the fourth vertex D are:

Correct Answer: (a) (1, –2, 8)

100. If P(n) : 2n n!, n ∈ N, then P(n) is true for all n ≥ :

Correct Answer: (d) 4