Download This Paper

Model Paper

Mathematics Paper -Xl

SECTION - A

1- If |Z|=a + ib then |Z||-Z| = ?
(a) |Z| (b) |- Z| (c) |Z| (d) |Z|
2- The matrix A has an inverse if A is ------- matrix
None Singular (b) Square (c) Singular (d) Rectangular
3 - (-i) _-19=?
I (b) –I (c) 1 (d) -1
4- if A = then |A|
30 (b) 60 (c) 80 (d) 120
5- A unit vector in the direction of the vector 4i-3j is ---------
(a) (b) (c) (d)
6- If α,β,γ are the direction angles of a vector r. Then = -------------
Cos α (b) Cos β (c) cos γ (d) sin β
7 – if I , j , k be the unit vector then I, j , k =-------------
vector r, then
8- The nth tem of the sequence 1, 5, 9 , 13 -------------- is -----------
3n -2 (b) 4n -1 (c) 4n -3 (d) 4n - 2
9- The sequence where t1 = and t n+1 =Tn+ (n +1),n = 1,2,3----------- is called ------------
Factorial sequence (b) Triangle number sequence (C) Pascal sequence (d) Arithmetic sequence
10 - The number of function defined on n-points if each functional value is either '0' or '1' is -----------
2 ^n-1 (b) 2ⁿ (c) 2 ^–n (d) 2 ^{n+ 1}
11- If A and B are independent events then P(A ∩B)
P(A) – P(B) (b) P(A) + P(B) (c) P(A) P(B) (d) P(A) – P(A/B)
12 – n⁴ > 3n² + 2n + 1 is true for----------------
n ≥ 1 (b) n ≥ 3 (c) n ≥ 2 (d) n ≥ 4